I had a conversation on the phone with a friend about... an hour ago, very similar to the nature of this post.
Some people make a lot of money in an ethical way, though hard work. Others "hurt" others along the way to make the money. While the example you gave around pharmaceuticals isn't one of direct harm (medication, on the balance, is good, and helps us live longer lives) - but the bad of it is that the cost trickles down in our taxes and other "costs of living" that aren't readily visible.
And those trickle down costs are more of a flood, and a lot of the incentives for pharma encourage them to keep us ill, rather than finding ways to improve our health.
Just as fast food keeps us hungry :)