But I think we can go too far emphasizing pleasing the client sometimes. I don't think it's so rare to see genuine conflicts of interest, like squeezing for unreasonable deadlines and scopes, where the problem can't really be solved by just charging more.
If a client makes overly aggressive demands and won't listen when you take the time to tell them politely what you can do, is it better to be exploited mercilessly and risk breach of contract, or to cut your losses, swallow your pride and find another way to pay the rent?