Another endgame goal, lifted from other games: "diversify your portfolio." What I mean is add a simple option in your office to invest surplus cash into the stock market or whatever that earn dividends. This way you could work your way towards a form of permanent income that doesn't require constantly juggling porn jobs forever.
"But wait, isn't that what the Website is for?" Yes, sort of, but that also takes maintenance of it's own - but the payout is very high, as well. I'm talking something with zero maintenance but a really low payout (IRL, most investments only average around 5-10% return per year).
Why even bother? Well, for starters, this will matter in later developments if we ever see things like the MC having to pay rent for snazzier apartments, or to help cover basic business costs, or dating content is ever added. It would create the possibility that maybe, someday, the MC could actually retire from actual porn but still be able to go out on dates, meet people, and not starve to death or work themselves into suicidal depression from spending every waking moment as a bartender just to pay the bills.
And let's face it, no one wants to do porn forever. At least not in front of the camera. You know guys like Ron Jeremy and the rest went from being porn stars (which we have in game) to behind-the-camera porn producers (also in game) to simply living off their fat retirement fund (which we don't have in game).
It would be a nice little safety net, too, in case the dev wants to introduce disaster events and stuff. And it should be pretty easy to add, too: Toss money into fund, fund grows % per month (something like 0.5% would be realistic, modified by MC intelligence score), only option needed would be to immediately put profits into MC main bank account or automatically reinvest (toggle switch?). Like I said, easy peezy.