What was one way renaissance artists kept their new focus on science and accuarcy while still getting paid by the church to paint?

Their view of perspective changed which caused more life like figures and the churches wanted the best pictures of biblical references so the artists painted with this new concept and it made it bettet

The theme of social protest remained a consistent focus for jacob lawrence throughout his career. in the 1960s lawrence was inspired by news reports and photographs, including images of segregated lunch counter sit-ins and stories of the   freedom riders in the civil rights movement. from the 1970s onward, lawrence's work focused less explicitly on contemporary social issues.

Symbolism creates a "hidden meaning" of some sort without obviously showing it kind of like the "ophelia among the flowers" a beautiful peace but it does not look like anything right? if you  discover  the hidden meaning being the chaos and conflicts within ones mind youll see the art as having more meaning than just flowers.