Politicians can be outvoted. The EU is either full of them or by civil servants who can be fired if they do not do the jobs that politicians give them. Despite the best effort of xenophobes and other idiots to say differently, this is no different from how the UK is supposed to work.
When business lays down the rules and looks after things, the only people that can put them out of work are people who are unhappy that they have not made enough profit.
Politicians are supposed to work for us. Corporations are supposed to make money off us. This should make for different priorities...