I think it is more important for the poor people to get involved in health insurance than the rich. Dangers can occur at any time in human life, unexpected illnesses, diseases and accidents can happen. In a risky situation, rich people can easily cover their risk with money, but poor people cannot. But if they consider their health awareness and keep health insurance then they can enjoy the benefits when they are sick or in danger. We should remember that the main objective of insurance is to reduce the probability of risk and the amount of loss.
In the country where I currently live, people don't use health insurance much because most insurance companies here don't offer health insurance at the individual level.
If we make a more in-depth comparison, health insurance is indeed much more important for those who are still poor than for rich people who have lots of money for treatment when they are sick. However, at this time I see that quite a few rich people have made this happen for themselves, so that poor people have also started competing to follow these steps in order to have health insurance. But if in your area there are still companies that don't offer health insurance for certain levels of individuals, it looks like you also need to analyze to find out the reasons why they don't provide such offers to individuals or the public.