As someone who does hit the gym, in my experience the majority of people you’re impressing with your physique are men. Sure I’d say most women like it if you have it (assuming you aren’t too big), but generalising that it’s the main attraction would be a mistake.
As the former owner of an E36 and then an E90 I can tell you that the more modern ones still piss oil just as badly. And the consequences can be much worse (read: expensive) to boot.