It's actually a Tragedy of the Commons situation. If very few people think that way, everyone is better off and the society is a better place. But in such a place, the people that have this mindset will absolutely be more successful then if they didn't have it.

At this point we're decades into this flavor of capitalism and the profiteering has long since become the norm, sadly.

And before someone says "it's always been like that"... No, it hasn't. Even in pop culture from a few decades ago you've got the characters taking great pride in providing good products for great prices. Nowadays our culture mostly makes fun of people like that and they're portrayed as targets to be exploited...