1. The "unethical or lazy" is what the counterparty says to feel better about their own lives when they're failing. It's human nature to want to believe you're pursuing the best path.

2. I don't understand why people like to draw such a hard distinction. It doesn't upset me that some people prefer sushi to steak. People are entitled to their own lifestyle choices without judgment of those who make alternate choices. This isn't just a software/business/career choice issue. Paleo people love telling everyone else that their diet is the best. Many vegetarians often evangelize to others and imply there are serious moral imperatives at stake. Just because someone isn't doing what you're doing doesn't make them "lazy" or "unethical". On a side note -- I think "pursuing narrow arbitrage opportunities" is often something someone would say with disdain, but that's my flavor.

3. Most startup people aren't particularly making the world a better place anyways.

I'm sure a lot of that is written tongue in cheek, I loved it until the "narrow arbitrage opportunities" and "lazy/unethical" ending.