You can make money while damaging society. Some (possible) examples are employees working at: - a tobacco company - company that supplies oppressive regimes with tools (software and military hardware) to stay in power - company peddling some kind false medical treatment - tax lawyer helping people find loopholes - lobbyist working to increase regulatory capture in favor of their company
> you have to be pretty cynical to think most people aren't providing net value at their jobs
Yes, I agree. But note that you can provide net value to your company, but detract from society as a whole. Even so, I'd say the majority of people are adding value to society: plumbers, mechanics, pilots, engineers, most lawyers, some politicians, etc.
But there is a spectrum of how much you contribute ranging from way in the negative to way in the positive. There's also jobs that contribute nothing, but don't really hurt. Day Traders come to mind, they do high-frequency money sloshing, but don't really change anything.