This is a sign you're living in a bubble. If you're a high performer on a FB/G ad team, you're earning half a million dollars a year. Morals don't usually survive that amount of bribery.

These teams have thousands of employees.

Palantir has 2,500 employees. Obviously they have no trouble hiring. Facebook and Google have ad teams with tens of thousands of people. Juul managed to hire swathes of people, etc.