They really, really do. In fact, those salaries being so high is probably also due to the fact that you will be doing work that's a net-worse for the world so they gotta compensate accordingly.
A lot of these firms are parasitic institutions at a society level. They do benefit themselves and their workers at the expense of everyone else. Personally, I find it hard to respect someone that takes that choice, but I also get it. A lot of people only care about their own and their immediate people's benefit.
On that note, I really recommend "No other choice" by Park Chan-wook or the book ("The Ax") it is based on.
No? Why would you think this? Morality has been practiced by medieval peasants, by slaves, by soldiers sacrificing their lives, by people suffering from the plague, by gladiators. The rich are not known for their outstanding morality in any society I've ever heard of.
No. At least as I understand the word, "morality" means something different than "do the right thing when it is easy". If only those who can afford it do it, it is not morality. Morality is choosing the right thing even when it costs you, even when it is hard.
For me I could only do it because I had "f*ck you" money gained through investments, other people are able to do it because of welfare systems, or even through friends and family.
I also asked if you had done it yourself, because, as I also said, from personal experience, it's a LOT easier said than done.
Edit: fixed subject as I hadn't realised the person accusing me of making an ad hominem was the person I had originally replied to.