I'm only 25 and grew up in a post "don't be evil" world so maybe I'm jaded, but it always seems strange to me when companies try to make any moral stand about anything. Presumably if there was something a company could do to make more money they'd do it regardless of the ethical standing behind it b/c
1. The people running the company aren't stupid and want to make more money
2. The company is beholden to investors to make more money both practically and legally
IMO this means the only reason anthropic isn't adding ads is b/c they make more money posturing as the "good guys". As soon as that's no longer true not only are the people in charge going to do it, but there's probably some legal standing that would obligate/compel them to do so