You can't slut shame a fictional character. I'm sorry, you can't.
There's a difference between a real person who owns their body and has free will and someone drawing or writing their own sexual fantasy. They do not get the same respect and in no way should.
Also, there's a difference between cheesecake and mature sexuality. The latter isn't gratuitous and doesn't detract from the narrative, or might be salient to its themes. For an example, Mamoru Oshii's Ghost in the Shell is a brilliant and milestone work in the artistic history of anime. It prominently features extended shots of its doll-like protagonist in the nude, twice. It isn't however, just mindless titillation that we're spending these long moments glancing voyueristically at the Major's physical form. There's a reason for those shots to be there, just as there are reasons for every single image in an Oshii production, and that's to express the complication of sexuality and the artificial nature of the protagonist. Oshii intentionally makes her non-sexual in voice, posture, attitude - in the same token she's deprived of most visible signs of humanity. We see her being built, literally, and that's something we are aware of until the conclusion, where she is, again literally, deconstructed.
Another example is Cowboy Bebop, which used overt sexuality. Usually in reference the American exploitation movies it was paying homage too. The hyper-sexualized female bodies depicted at times are juxtaposed against more realistic personalities and circumstances, the world of Bebop isn't just one thing and nor are its characters.
Even Elfin Lied, while being a miserable sack of nihilism, didn't violate the tone or substance of the show through its overt use of T&A.
My top ten.. hell, my top twenty anime have very little fanservice involved, there are very few anime labelled "ecchi" that I care about in the least.