No, no, no. Completely wrong. Not only is it bad enough this woman has gone through with this idea and turned it into a genuine offer, but there are people out there (Presuming it isn't just a prank) willing to pay $3.7m to have sex with a supposed virgin who they've never met and no doubt will ever see again? I've never really seen the attraction to virgins; I see the gist of the point, but I'm not sure the benefits outweigh the problems. In terms of publicity and a sense of "empowerment", however, I'm sure this will do just fine.
I just hope she's prepared to find some rich, ugly, obnoxious man (Is she sure it'll be a man?) on the day the sale goes through.