Serious question -- who determines if said sexualization is needless? We as a society seem to be generally headed towards hyper-sexualization. Today, men are strongly sexualized in advertising as well [1]. Seen the massive, chiseled male movie stars in movies today compared to, say, 20 years ago? It will take a while for us to acknowledge that sexualization, but it exists today.
Now the gender balance in the tech field means that on an average, a woman will be more sexualized than a man. This can be a runaway feedback loop, and to stop it, maybe we should clamp down a little on sexualization. But it would be wise to recognize this and cast it as a logical argument, rather than make blanket, Puritanical statements like "You're a man and you're needlessly sexualizing women! STOP IT!"
[1] http://www.adweek.com/news/advertising-branding/hunkvertisin...