While artistic patronage can sometimes be used to generate revenue, this is not a primary or common reason why rulers and governments engage in it. The main reasons are typically related to promoting their image, asserting their power, or educating the public.

The Medici family used a combination of strategies to promote their political power through artistic patronage, including commissioning public works of art, supporting the education of young artists, and establishing a system of patronage that rewarded artists for creating works that aligned with the family's political goals.

The primary purpose of the Sistine Chapel ceiling frescoes was to glorify the papacy and the Catholic Church. The frescoes depict scenes from the Old Testament and the life of Christ, and they are intended to inspire awe and reverence in viewers.

The French monarchy used a combination of strategies to assert its power and authority through artistic patronage, including commissioning grand palaces and monuments, supporting the arts and promoting the work of French artists, and using art to promote the monarchy's political agenda and legitimize its rule.

The primary purpose of the Soviet Union's Socialist Realism art movement was to promote the ideals of communism and the Soviet state. Socialist Realism art was intended to depict the Soviet Union in a positive light and to inspire viewers to support the communist cause.

The Nazi regime in Germany used a combination of strategies to promote its political ideology through artistic patronage, including commissioning works of art that glorified the Aryan race and promoted anti-Semitism, suppressing and banning art that did not conform to the Nazi ideology, and using art to promote the Nazi regime's political agenda and legitimize its rule.

The primary purpose of the United States' New Deal art projects during the Great Depression was to provide employment for artists and other creative workers, to promote the arts and culture in the United States, and to create a body of art that reflected the American experience during the Great Depression.

The Chinese government has used a combination of strategies to promote its economic and social development goals through artistic patronage, including commissioning works of art that celebrated the achievements of the Chinese people, supporting the arts and promoting the work of Chinese artists, and using art to promote the government's economic and social development goals.

The primary purpose of the African National Congress's (ANC) cultural boycott of South Africa during the apartheid era was to pressure the South African government to end apartheid, to raise awareness of the apartheid regime and its human rights abuses, and to promote the arts and culture of South Africa.

The Cuban government has used a combination of strategies to promote its revolutionary ideals through artistic patronage, including commissioning works of art that celebrated the Cuban Revolution and its leaders, supporting the arts and promoting the work of Cuban artists, and using art to promote the government's revolutionary ideals and legitimize its rule.

The primary purpose of the United States' Public Works of Art Project during the Great Depression was to provide employment for artists and other creative workers, to promote the arts and culture in the United States, and to create a body of art that reflected the American experience during the Great Depression.

The Mexican government has used a combination of strategies to promote its cultural identity and national pride through artistic patronage, including commissioning works of art that celebrated Mexican history and culture, supporting the arts and promoting the work of Mexican artists, and using art to promote the government's cultural identity and national pride.

The primary purpose of the Soviet Union's Socialist Realism art movement was to promote the ideals of communism and the Soviet state. Socialist Realism art was intended to depict the Soviet Union in a positive light and to inspire viewers to support the communist cause.

The Nazi regime in Germany used a combination of strategies to promote its political ideology through artistic patronage, including commissioning works of art that glorified the Aryan race and promoted anti-Semitism, suppressing and banning art that did not conform to the Nazi ideology, and using art to promote the Nazi regime's political agenda and legitimize its rule.

The primary purpose of the United States' New Deal art projects during the Great Depression was to provide employment for artists and other creative workers, to promote the arts and culture in the United States, and to create a body of art that reflected the American experience during the Great Depression.