I'm trying to write a short story about a new post-capitalistic economic system. I have 3 ideas based on current capitalism:

1. **Wealth Limit**: To ensure that the middle class has most of the wealth possible a limit that establishes how much wealth in property and money you can have is set. Great projects are achieved through crowd-funding. This limit is set to make the middle class as big as possible with the most wealth as possible.
2. **Moderate Wealth**: 1% of the world's population owns the 99%. This wealth inequity is unacceptable. To prevent this from happening taxes are increased depending not on your income but how much wealth you own. It's the same with fines, you pay according to how wealthy you are. Your offspring can only inherit a part of your fortune if your are in that 1% of the population. All transactions are done electronically so there is no point in taking the money to a tax-haven. Your government knows how wealthy you are all the time. This is done to prevent lobbies from influencing the government and prevents the rich from controlling democracy.
3. **Social Capitalism**: It is believed that current capitalism encourages psychopathic behavior therefore "morality" is put first in certain sectors such us education, law, military, justice, media, health, prisons etc which can only be done by public services. Most technology is done with open source license therefore you get cars with clone components built by private industries. Patents are not allowed if they are related to a sensitive sector such us health. People who accomplish great achievements are properly rewarded by the people. Democracy is done directly by the people through the Internet.

I'm looking for opinions about these models, how sustainable they could be or what flaws they can have.