Right, and it's up to us to try and vote in politicians that militate against those tendencies, for example the way many financial regulations were swept away i

Right, and it's up to us to try and vote in politicians that militate against those tendencies, for example the way many financial regulations were swept away in the UK in the 1980s, or many examples of deregulation on airline industries (long way still to go), long distance telecoms and haulage industries. Regulation is very much a two edged sword though. Too little and cartels and monopolies are unconstrained, and individual customers are too easily cheated by deceptive practices. Too much regulation and the cost of entry into markets gets too high. It's a constant balancing act.