London's mayor has banned 'unrealistic body images' from transport advertising

[rambot]

Sure...but why isn't that viewed in the same way for other scenarios?

Why do you think?

This idea that "we can't hurt anyone's feelings because they haven't achieved the same things we have" still seems backwards to me. You're punishing people for hard work and success at that point.

Hmmm.... I'm not sure what I think of the word "achieved" there. That seems a bit presumptuous. I would say "have".
Again, advertising is based on making people feel bad and I think there more than a few people who view most marketting strategies as beneficial to companies but not beneficial to individuals.