Interesting analogy between pilots and some medical doctors:
They wear a uniform (white coat/tie or scrubs), many ARE paid negotiated wages (docs working for Kaiser, for instance, are in the Permanente Medical Group and supply their labor to Kaiser under a fee agreement, perhaps they don't operate "heavy machinery" but do operate multi-million $ equipment like pilots, and more and more of them are unionizing and threatening to withhold their services in an effort to restore their declining pay/working conditions.
I don't know of anyone who would consider doctors to be blue collar, however. In some medical sub-specialties, their colleagues readily refer to them as technicians due to the limited field/scope of medicine they practice.
The general decline in the medical profession has been underway for about 2 decades. Like today's cargo pilots, some docs in specialties and sub-specialties have fared relatively well (economically speaking) in spite of the decline in the medical field around them.
I find many similarities in the two professions. Both are in decline in terms of prestige and financial remuneration. 30 years ago major airline pilots were respected and looked up to and doctors' conclusions were not questioned. Now, people feel pity for airline pilots losing their pensions and wages, a significant number of airlines are bankrupt (or nearly so), the LCC's (like today's HMO's) are the norm and most patients obtain a second or third "opinion" on any serious diagnosis.
There are many parallels.
BBB