If everyone could truly tell you what they do and how much do they earn, I do not think it will be any helpful at all for the following reasons:
1. Yearly gross earning will not tell you taxes, T4 or Incorporated, commissions, financial commitments, other living expenses and hobbies. It is meaningless number alone without whole picture.
2. Even if you have all information about how much a person earns without knowing what they own, you do not know how flexible they are with expenses. A person can earn $250k and another one can be retired. Which one is better?
3. Even if you know all of the above, it is also important what stage of life people are right now. Are they just started two years ago, or working 30 years. It is a big difference.
4. And most difficult part is it is almost impossible to replicate because some people started their carriers, businesses, real estate and financial investments 30 years ago. You need Time Machine to go back and do the same. It is because today is different world than it was 30 years ago. Some things doesn't make sense to start anymore.
Regarding building a business with an escort, I do not think it is wise idea for the several reasons:
1. You do not want a girl you see to know all about you, your finances etc.
2. You do not want any random people in your business you are building.
3. You do not want to be with a person 24/7. This kills attraction in a big way.
4. Escorts sell you a fantasy. If you start hung out with them all the time you will start learning who they truly are. She may look cute during 1 hour session, but can turn to a grumpy bitch at best...
I also skeptical about building relationships with an escort. If you like seeing a girl just continue to see her. Why would you want to complicate things? You have to appreciate they have other clients and most importantly a different life outside of sex trade.
That's my two cents...