In my experience, women are interested in hearing about the guy's passions, not less so if that passion is building a transformative startup.
I don't think it's fair to make that assumption. Passions are awesome, but they'll lose interest if you start describing the intricate details. That's not only true about women, but most people in general. The trick is in how you describe, and not what you're describing.
One remarkable girl had me asking questions for half an hour about shoes, for example. I hate shoes.
I think I'd rather not be successful at picking up someone who doesn't care about my passions. They don't necessarily have to have the same interests, but if they're completely uninterested and uninterested in you, it's probably not going to go well.
(fortunately my girlfriend has gone from a being a biotech tech worker at a big pharma company to constantly asking about how to start a startup...)
In my experience, women are interested in hearing about the guy's passions, not less so if that passion is building a transformative startup.