Unfortunately there is no one style of economic system that is fair to everyone. Capitalism is arguably the most fair of all, since more people benefit from it than not. Capitalism is the only economic system where people can truly benefit from the fruits of their labor. Yes, rich people get richer under capitalism, and yes it can foster greed. But it also provides living wages, free markets, and allows anyone with an idea, passion, desire and a willingness to make sacrifices and work hard to become successful.
Socialism creates a disincentive for success and achievement. What happens with socialism is the rich people at the top are forced to forfeit the majority of their income so the people at the bottom can have a better living. This seems all fine and dandy, but ultimately those who worked hard to get rich realize they're getting the shaft so they give up and stop working so hard. Less money taken in means less money to go around, and eventually the government runs out of other people's money. Look at Greece for an example of people living off the government run amok.
Then there's communism, which doesn't really favor anybody but a few select people. There's no competition for products and services, which means there's no quality of life. There's no freedom. Your news is censored, you buy what they tell you to buy, watch what they tell you to watch, and basically just do what your told.
RE: ticket prices, It's simple supply and demand. If a product is too cheap and everyone can afford it, demand is increased which means there's not enough of that product to go around. If it's too expensive, it won't sell.
In the case of NFL tickets, if demand is too high, there will be a waiting list for every game, which means fewer fans will actually be able to go to the games. You'll get that one guy who would ordinarily just buy one or two tickets for one or two games to buy 4 or 5 tickets for 4 or 5 games. Likewise, if they're too expensive, no one will be able to go. There's a fine balance between fair pricing, and over or under pricing. Right now I believe tickets are priced fairly. If they were too high, you'd have more supply available and as a result, more blackouts.