I think it is a bit off to say someone does not do their job for the money. Of course it is being done for some money. And some people choose to do jobs they like (teaching) which pay less than other jobs, but teachers (for example) do complain about salaries, look forward to retirement, try to get more money through union contracts and so forth. I don't know any teacher who would do it for NO money. I don't know of a therapist who would therapize for NO money either. I am not saying they should work for no money. The truth is - they do consider it work and it is a business situation. It is not a bad thing. If you read some social worker sites or look at therapist continuing education stuff - a lot of it revolves around practice management - how to get clients, how to bill, how to get paid. Law students are another example of people who have to learn the business side of practicing law. A person may want to be a lawyer for noble reasons (protect the down trodden, save the environment etc), but they still have to figure out how to bill, how to pay investigators, secretaries, etc.
That it is a business protects the client.
I don't see therapist as being a difficult job or one where I think they are under paid (it is indoors, no heavy lifting, some people seem to adore you for no good reason, and one can turn everything around to being the fault of the client or just not say anything, and so forth and always say what ever was because you determined it was in the client's best interest). But that they do get paid is both a reality and not bad, in my opinion.