No, not necessarily at all.
It all boils down to each person's individual emotional make-up. Some people are quite adept at the ability for emotional dissonance and or intellectualizing interpersonal relations in general and will have no problems in this factor, whilst others not so much.
Some people will find escorting much less emotionally taxing and self-affecting than hooking-up or serial monogamy as they are performing a relatively quick task for an objective. For them it is not a harrowing betrayal of the 'self', the sex inconsequential, it does not come from a place of emotional or sexual longing. It for them is akin math. Some people detest math, some people feel secure in it, some people are excellent at it. Some are not.
The thing is it isn't one of those things where you sit down and say to yourself "OK, I'm going to be an escort. Let's see...will it affect me emotionally and psychologically? Processing.....Processing...Nope! It won't! All systems go!" The damage could come after the first time you exchange sex for money....maybe a week later....maybe 4 years later. Maybe never. You can't know how and if it will affect you. You could wake up one day after having done it for a few years and put a bullet in your head without suspecting it. Or not. It's an emotional and mental gamble.
Aside from the bullet in the head hyperbole, I can see your point. However, if a person is disgusted with the idea of self-prostitution under any or all conditions a priori, they can safely assume it is not for them and to go against their personal beliefs would cause them to suffer. Some people don't really know how they feel about it, those are the ones taking a gamble (and even if they started escorting, they could stop the moment they realised it is not for them). Then there are the ones who are secure in the self-knowledge that they aren't emotionally vulnerable to it. They are likely to be the same people who can objectively look at other personal situations that most people would feel vulnerable to. It's a calculated gamble based upon personal characteristics and behavioral history. As is any job or type of relationship a person commits themself to, if they find it no longer works for them, change it, or risk emotional damage.
@ scruffypup: I'm not encouraging him to do it at all. On the same token, I'm not going to offer blanket morally absolute value judgements in attempts to prove that deciding to do it, regardless of precuations/personal character/set boundaries etc, will result in a disasterous foregone conclusion.
I prefer to use logic as opposed to emotion to decide my views and opinions, but that shouldn't suggest I am pro-everything, becuase I'm not. I just refuse to over-simplify complex issues.