1) You don't give any figures for how common it is for doctors to get invited to a conference that is an excuse for a vacation. And I suspect you don't have any.
2) Even if it's true, there is a limit to how you much you can influence a doctor with such things. You might get a doctor to adopt some new drug which isn't as good as it should be, but you can't, for instance, get the doctor to oppose vaccination or convince him that saturated fats are healthy. It would be impossible to get doctors to oppose chiropractic this way unless there was already obvious reason to believe it's pseudoscience.
Cigarette companies had plenty of money and tried to buy as many experts as they could. The best they could do was get an occasional scientist or doctor on their side; they came nowhere near convincing the whole medical profession that cigarette smoking is safe.
convince him that saturated fats are healthy
Well as we know now they are healthier than trans-unsaturated fats. Nevertheless, for decades doctors would advise their patients to switch from butter (saturated) to margarine (trans).
TL;DR: There is probably some costly problem in your life right now that you are not even aware of. It is not that you are procrastinating on solving it. Rather, this problem has gradually blended into your environment, sinking beneath your conscious awareness to the degree that you fail to recognize it as a problem in the first place.
This post is partially an elaboration on Ugh fields, but there are some decisive differences I want to develop. Let me begin with an anecdote:
For about two years I've had a periodic pain in my right thigh. Gradually, it became worse. At one point I actually had a sort of spasm. Then the pain went away for a few weeks, then it came back, and so forth. All the while I rationalized it as something harmless: "It will probably just go away soon," I would think, or "It only inhibits my mobility sometimes." Occasionally I would consider seeking medical help, but I couldn't muster the energy, as though some activation threshold wasn't being reached. In fact, the very promise that I could get medical help whenever convenient served to further diminish any sense of urgency. Even if the pain was sometimes debilitating, I did not perceive it as a problem needing to be solved. Gradually, I came to view it as just an unfortunate and inevitable part of existence.
Last Monday, after hardly being able to walk due to crippling pain, I finally became aware that "Wow, this really sucks and I should fix it." That evening I finally visited a chiropractor, who proceeded to get medieval on my femur (imagine having a sprained ankle, then imagine a grown man jumping on top of it). Had I classified this as a problem-needing-to-be-solved a few months earlier, my treatment period would probably be days instead of weeks.
Simply, I think this situation is of a more general form:
You have some inefficiency or agitation in your life. This could be solved very easily, but because it is perceived as harmless, no such attempt is made. Over time your tolerance for it increases, even if the problem is worsening (Bonus points for attempts at rationalizing it). This may be due to something like the peak-end rule, as the problem doesn't cause any dramatic peaks that stick out in your memory, just a dull pain underlying your experience. Even if the problem substantially lowers utility, your satisficing lizard brain remains apathetic, until the last moment, when the damage passes a certain threshold and you're jolted into action.
While similar to procrastination and akrasia, this does not involve you going against your better judgement. Instead, you don't have a better judgement, due to the blinding effects of the problem.
Possible Solutions:
I didn't solve my problem in a clever way, but I've begun employing some "early warning" techniques to prevent future incidents. The key is to become aware of the worsening inefficiency before you're forced to resort to damage control.