"Culture" also exists in an ecosystem, and is subject to evolutionary pressure. It's why things like religious zeal self-perpetuate - armies of fanatical maniacs tend to win wars against armies of pragmatic atheists.

Human societies are meta-organisms - they modify themselves over time, and compete with each other for finite resources. Any culture which sacrifices competitive advantage for any reason is simply out-competed and absorbed by other societies which make no such sacrifice. There is no escaping this reality. This is referred to as cultural group selection.

> Your idea of our environment predisposing us for capitalism is simply false. Notably, the premise rests solely on your posturing here.

I'm not saying it predisposes us to capitalism though, I'm saying it predisposes us to maximize resources and engage in competitive behaviour. This is supported by the fact that very nearly every organism in nature also engages in resource maximization and competitive behaviour (r-Selection). There is no altruism (going against genetic self interest) in nature, it's simply not sustainable.

> Your ideas about people being automata beholden to their genetic programming beyond their control is even more absurd. And lacks any basis in evidence.

I'm making no such claim. I'm simply claiming there are constraints in the system, and ignoring them doesn't make them go away.

> Lying isn't wrong because "arbitrary morals" say so, it is because realistic, objective consequences tell you so.

Any yet, no matter how hard we try, we've not managed to eliminate lying (or even agree what specifically it means). Are you really suggesting that some yet-undiscovered set of rules will create a society in which no one will ever lie? Doesn't that sound a bit.. unrealistic?