The above people have already raised most of the issues I have. The industry treating fish as disposable, stores misinforming customers, detrimental effects of collecting from the wild.
I read The Dragon Behind the Glass which opened my eyes up to how collecting from the wild affects the environment and the people that live there. It also made me think a lot about people objectifying fish. I think it happens with people who are very involved in the hobby, as well. Even people who put a lot of care into their tank still think of their fish as objects. If the fish dies, they get sad because they lost a nice specimen, not because they cared about the fish itself. Of course, this is not by any means all hobbyists, but it is some of them.
I read that book too, one of the best on the fishkeeping hobby. Amazing!