How would you feel if insurers prodded lazy people to engage in healthier lifestyles?
Empowering insurers could be useful in this regard.
No, people who have serious health issues are the ones who tend to prefer the more complex treatment options, shorter wait times, and customizable interventions that multi-payer systems have to offer.
People who don't have complex health needs are the ones best served by single-payer systems like the NHS - and the data around treatments for complex conditions (like cancer) backs that up very plainly.
This statement shows an utter lack of experience navigating the insurance/medical complex with a serious health problem.
It's pretty arrogant to assume that anyone who doesn't support government-managed healthcare has no experience with dealing with serious health problems, which you've done twice in this thread alone.
I'd encourage you not to do that. It doesn't lend itself to productive conversation, and shallow, pithy dismissals are against HN comment guidelines.
Besides, you can get those things with single-payer health care by purchasing private insurance on top of the single-payer plan or simply visiting private places instead of the state-funded ones. Here, the state still pays the private places their normal fees and the extra payment from the patient provides bells and whistles, generally including things like shorter wait times in some cases.
Just because you have a serious health issue doesn't mean you need a complex treatment option. A gall bladder can be a serious health issue. All interventions are customized to the patient based on medical standards lest you risk injuring the patient. You also aren't as likely to get the slew of run-arounds when changing health insurance or doctors (migraine sufferers often have to repeat treatments that didn't work or find their medication that works is no longer covered, even if their medical history reflects this). You aren't getting repeat tests because the others were out of a hospitals' network either (happened to my aunt).