Why did athens experience a "golden age" after the persian wars and what did this eventually lead to?

The Athenians became one of the most powerful city-states, and the de facto Greek capital, after the wars. As a result, the arts, building, and philosophy flourished in the city. Rivalries over resources and power emerged between Athens and Sparta, which eventually led to the Peloponnesian War.

the ones that are losing there jobs

i honesty don't know, good luck tho dawg