We all, to some extent, do selfish things that on average make everyone worse off. You might call it greed. I'm just surprised to see people publicly approving of it.
But why is this so-called "greed" less acceptable than the "greed" of owners/investors, who want everything be as efficient as possible for their own benefit? Strong organized labor is how we accomplish "inefficiencies" like paid leave, regular breaks, safety standards, etc.