one persons gain is another's loss

I was sitting in my economics class today and we were discussing market pricing and how we have a price floor and a price ceiling. Price floor is when government sets a minimum price on a good or a service and price ceiling is when the government sets a maximum price on a good or a service. So while discussing this, it came across my mind that we were discussing health insurance and how it'll be a benifit to some and not to tohers. If we do pass the bill for universal health insurance then the people that don't have insurance now will be at benifit and the people that are paying high prices for their insurance are the ones that will be loosing.