They didn’t become greedy, an exogenous shock (COVID) caused real price spikes, which then subsided. Companies then decided the price spikes were a new floor, w

They didn’t become greedy, an exogenous shock (COVID) caused real price spikes, which then subsided. Companies then decided the price spikes were a new floor, which they could get away with because of corporate concentration, resulting from lack of regulatory oversight and a congress that is asleep at the wheel/paid off by said corporations.