The number of professions that would exist if human beings needed nothing from each other would be much smaller, unless new professions were invented.
If the was no illness or if one could cure it by himself there would be no doctors and no pharmaceutical industries becoming some of the richest on the planet. If one didn’t need capital to start a business or if people were generally more wealthy, the banks couldn’t lend money. If there was no excess of unemployed people compared to available jobs, almost nobody would agree to work for peanuts. If there were no STDs condom sales would drop dramatically. If people got along with each other more they would need to visit counselors less. And if there weren’t thousands of laws written in archaic dialects that one ought to abide to without knowing them, most lawyers would be unemployed.
Of course, I’m not asserting that all those people want another to suffer so as to make money. A doctor might indeed care to heal another, and do so indeed. And the same is true about all other professions. And such people should be the only ones entitled to make any money out of their profession, at all. However, if one’s job, responsibility is to handle something and he doesn’t do that, but he pretends to do so while in actuality he perpetuates, exaggerates or even creates problems so as to make money, we get some unfortunate conditions being created. If everybody focused on being effective instead of making profit, and if they were evaluated based on their effectiveness and not based on their wealth, this would be a much happier place to for all to live in.