Hedonic adaptation. Humans can quickly become accustomed to circumstances, rich or poor, and then they can start criticizing it. This is in fact one of the prim

Hedonic adaptation. Humans can quickly become accustomed to circumstances, rich or poor, and then they can start criticizing it. This is in fact one of the prime drivers for innovation in the world, because those that thought everything was already good enough wouldn't be the ones innovating.