I'm not sure how it works in other countries but here there is a medical board that will hear cases and you can lose your license. I would guess a similar system exists in most places in Europe. Being brought before the board is basically like fighting a court case. I don't imagine most professions have this hanging over them combined with the amount of opportunities to get into such a situation.
If I make a mistake filing my company’s taxes or similar and it’s caught by the authorities, that will be part of the public record.
For me it’s a bit hard to understand that I should be subjected to immensely much more public scrutiny than a doctor. Why? I thought they had so much responsibility, not me.
At least here in Sweden the problem with the medical board is that they are doctors and will only revoke a license for truly egregious violations of ethical standards / law. They also look at one case at a time, so a doctor can have tens of cases representing a staggering level of unprofessionalism in total, but still keep their license.
But if you don’t care and you expect zero consequences, then yes: “punishment” would make a dent.
And to be clear, the kind of “punishment” I think is needed is e.g. that a regulatory authority keeps a score of severe misdiagnosis that is publicly accessible. Every doctor would probably have a few in their career, nothing to worry about. But if you routinely misdiagnose patients then it’s going to add up over the years.