The system is designed to preserve itself. Laws are made to protect the top from the rest of us.
As for the too big to fail banks, they will destroy themselves eventually. Greed and the belief that they are untouchable will eventually lead them to their own demise. The gigantic amounts of derivatives these banks have on their book, while having a capitalization rate of 3% makes them very vulnerable.
The problem is that they will take the entire financial system down when they fall.
Hopefully this will be like the forest fire creates room for new growth. Maybe a new financial world, like a phoenix, will emerge based on solid values and without fractional reserve.