1) I think it's funny that you rage about mysogenistic bullshit when the artist herself is female. Are women capable of misogyny? Or are you just mad that she chose to draw the classes in a way that would appeal to the majority of the TF2 audience - adolecent, teenage and young adult males - and not to pander to your own personal feminist preferences?
2) "Not every man I draw turns out like Arnold Shwarzenegger because I understand and recognise that not every human is perfect and no two people are the same," you say? Having gone and looked at your gallery, I think this has more to do with your level of skill as an artist rather than your understanding that human beings fall short of the ideal. This is not intended so much as an insult rather than to point out you're picking on ghostfire's level of skill and growth (and not even for constructive criticism) while you yourself are still budding.
3) The link to "Ugly Guy, Hot Wife" on TVTropes doesn't negate Logan's point about not wanting to spend a long time drawing something less than ideal. All of Hollywood feels the same. I don't think ghostfire needs to grow up and face the facts of life, I think you do, because it's the bitter, ugly, fat, wart-covered truth that in marketing, you don't present the truth; you present the ideal to the masses in order to sell your product. And it works, as evidenced by how many comments, favourites, views and downloads this artwork itself has. And because it works, it WILL remain a fixture of advertising whether you like it or not.
4) Rather that being mad at this artist for effectively appealing to the masses, I think you should be mad at parents who don't engage with their daughters enough and explain to them clearly and ernestly that they ARE beautiful, special and worth something, no matter what anyone says (multiple, multiple times.) Because that's what can and does need to change: parents need to start doing their fucking job and steer their kids around the jagged rocks of marketing schemes, not blame the ocean for having rocks in the first place.