Doctors and Public Health

Still true today:

"A certain section of medical opinion, in late years, has succumbed to the messianic delusion. Its spokesmen are not content to deal with the patients who come to them for advice; they conceive it to be their duty to force their advice upon everyone, including especially those who don't want it. That duty is purely imaginary. It is born of vanity, not of public spirit. The impulse behind it is not altruism, but a mere yearning to run things." — H.L. Mencken

In their role in society, medical doctors have replaced priests to a large extent.