You can "buy" elections with money. "Money is speech." according to the supreme court. The more money you have, the more speech you have. You can open any business you want and destroy the competition. Just like Walmart destroyed practically all small stores. You can price the books according to your whims and fancies as Amazon is doing. The authors and publishers are left stranded. You can "bribe" politicians to change laws to help you.
I don't see much right with the system where top 1% have all the wealth and consequent power. People are inherently greedy and with capitalism, we have glorified greed. So, to really improve the system, greed has to be considered bad. Till that happens, this will continue.