Actually I agree with this mostly - but I think its just not the same for everyone. I think for a lot of people its rather like (staying with your example) that they want to have the muscles immidiately and then they can still enjoy going to the Gym and lifting a lot of weight (or raiding in high end gear for that matter).
I dont see anything wrong with it these days....I did have a different oppinion in my "hardcore raiding days" though.
I think whether it's obvious to oneself or not it always boils down to people who invest a lot of effort dont want other people to invest less effort to achieve a similar result...understandable but still...