TLDR: Can't feel my dick, had sex with women and men, world would be more goal centric. Advertisements would not change much, men and women would be on same playing field.
As a male who derives no pleasure from sex life for me is different. While I enjoy a beautiful woman with a nice body for me its not the same I see other men act. To me its OK, she has a lot of cleavage, I may glance once sometimes not at all. I pretty much gave up on sex after my girlfriend died. But the matter of fact being is I cannot feel anything on my dick. Blowjobs are the worse and always refuse them from females even though I have heard many times they were told they were the best. It is always awkward and unnerving. Sex on the other hand is a different ball game. I am not bragging but when I first popped my cherry my first thought was this is it? And thought I did it wrong so I became a whore monger any woman I saw I tried to fuck. Most sessions were her cumming and asking me if I am about to cum and fake an orgasm. Yes I can get hard but still no feeling. I can fake it by making my dick twitch a little to make it seem like I am shooting my load. I usually go to the bathroom to "clean up" where I sit there for about five minutes till it goes half-way limp again.
I then came to the conclusion maybe I was gay. So I tried dating men which is really really difficult to do because alot of gay men looked at me and said you are not gay. But finally I put up an ad on craigslist and fucked a guy, still same thing. So then I thought maybe I was a "bottom", and begged a gay friend of mine to fuck me once. I got him drunk one night and he finally fucked me with no avail. I went to a doctor and told him my problem and he thought I was joking and gave me Viagra which I never took because I did not want to have that long of a hard-on.
Women love sleeping with me, or so the rumor mill goes, because I give them an orgasm every time. But its depressing afterwards. After sleeping with 28 different women and two men I basically gave up. I have been 5 years without sex. But this is not the answer to your question though.
My life is pretty different, I am not married and no kids and single (currently). From what I can tell most men have a sex centric life whether through jokes or other stuff. For me its here and now that I worry about. While I think of the future from time to time its just a daydream. Will I probably become a hermit, yes which is ok with me. But I am only guessing I view the world through a woman's eyes with the over sexualization of females and the need for tits and ass to be shown in movies or tv shows. I just roll my eyes and think is this really necessary.
So my guess is as a society as a whole was like me just with there own attitudes and opinions about different things. The world would be much more goal orientated. Advertisements would probably still be the same but would focus more on comfort than being sexy and cool. A woman would just be a woman a man would just be a man and both would be on the same level pay or otherwise. And I do not think we would go extinct because people would still procreate for whatever reason they deem necessary and people will still be willing to adopt. Which is what I plan on doing after I get older and a point in my life where I have a secure job enough money in the bank.
Sorry to ramble, the TLDR is at the top. On a side not can we start putting the TLDR at the top so we can get a guess of what we are about to read?