As for how much you make, regardless if you reinvest or not you are still making great money, and reinvesting is a personal choice not an obligation.
She said reinvest *in our business*. Business expenses aren't exactly a choice. If I want to advertise it costs money. My incall costs me money (rent, hydro and internet). Supplies cost money (condoms, lube, lingerie, wipes etc).
I mean sure one could say it's a choice, I could walk the street instead of advertising. I could receive you at motel bourassa which costs less than my incall or any other hotel, and we could fuck without protection instead of buying condoms. But somehow I feel like this isn't safe nor fair for anyone involved, and I feel like this isn't exactly the type of experience you're looking for either.
So no. Expenses aren't really optional if we're trying to offer a certain level of service.
As for the assumptions that our job is low skill... We are sex athletes. We are secretaries. We are marketting specialists. We are web designers. We are counselors. We are stylists and makeup artists. We are sex instructors. We are disability support workers. We are travel agents. We are so much more than just the holes you see us as.