I suspect the bump comes when you leave the over job in order to solely escort. Escorting can pay extremely well, especially if you don't have conflicting professional commitments. I would think that many working guys (and I suspect even more working gals, but that is more speculative on my part) have some decent amount of savings, and a not insignificant number own property. 100k a year is only ~8k a month, which I think a lot of sole-support providers would easily clear. That may not be the median, but it's also not merely the top 10%. I suspect that escorting is a more evenly distributed pie as opposed to entertainment where my impression is that the top 1% makes almost all the proceeds.
Maybe the distinction comes from those who are doing it as a last resort versus those who do it as a dominant option. For that latter group, it would have to pay at least somewhat comparatively to the next best option, or else they wouldn't be doing it.
Kevin Slater