If you're talking about the situation here in France, it's a bit different regarding money. Doctors are still paid more than most people in IT. Given the IT money in the US, I'm not sure they have the same situation if we look at the hourly rate.

Regarding doctors strikes, I asked the question to multiple ones and the few explanations I got are : - they are deeply regulated and organized, they rely more on acting behind the scenes (lobbying) than going public in the streets - they still have a comfortable situation that they chose ; unlike blue-collar workers who can barely afford food/housing and have to take what job and salary is offered to them ; a GP can move to a private hospital if they want more money and less hours - even though they are organized, they have much more individualistic views of their job than labor workers ; after all they mostly are their own company