It's because the PMC struggle for relative social status leaves no room for morality, or even self-awareness. One's income and access to future opportunities (and ability to avoid falling into the working class) depends completely on controlling a share of a fixed-size pool of social capital, so social competition is ruthless, and there is no place for empathy or regrets.

The "two buck Chuck" (three bucks if you're not in California) is absolutely a perfectly good wine, and anything more expensive is only for special occasions. The nicer box wines are also perfectly good at $20 a box, which is about $5 a bottle.

"Terrans don't have souls. We don't believe in them."  — Benjamin Sisko (mirror universe)