Every job may be of equal importance, but not everyone can do every job. It sounds simple, a doctor alleviates pain, but an amazing amount of skill is required (need I say). If you look at homeopathic medicine, its the same story. The practitioner will have an extensive knowledge of herbal remedies. I am not a doctor myself, but from what I understand, experience is also quite important. Its one to thing to read about a disease, another to have seen it live. Or just think about an OR - the well-experienced chief surgeon down to the resident. So becoming a good doctor requires a great time committment (sorry for sounding obvious). Can the same thing be said about a buisnessmen? Hell no. Look at Bill Gates. The man did not become a billionare by observing his superiors at a computer company. He found a product that was sorely lacking on the market, and then he founded Microsoft to market it. Thats how a buisness works; seize the opportunity, sell the product. Years of toil and drudgery are not required. Architecture - okay, I have friends who are architects. This too is not as difficult as it sounds. Soldiers - I personally, am opposed to all killing. We could have a Mahabharata debate about the inevitably of the soldier profession, but shall I say that not much skill, and a lot of hate/fear/ignorance is required to become a soldier (how else you can kill someone). Unless of course you are fighting for Ram or Sita, but thats a different story; these days ppl fight wars for Bush and Kashmir. Now compare all these professions to the medical profession. I don't know of any doctors who are after money for money's sake. Manual labor? Maybe for the psychiatrists.
Difficulty? Certainly; you have to give yourself up totally, isn't it. My uncle who is 60 still does 48 hr days sometimes; what architect can say the same? Hate/fear/ignorance? Certainly not. So you see... maybe the different professions gives society some cohesiveness (yes, the doctor can drive home in his car designed by automative engineer, to the house designed by an architect, on the way picking up food grown by the farmer, etc), but the doctor's profession nevertheless requires more skill than all these others. Take away the farmer, and all the doctor has to do is a plant a few things in his backyard. Is the car absolutely necessary? No. Architect? No. The doctor could take some wood and build a cabin. Now if any of these ppl were ill, who would they go to?