It's worth remembering...
that 'stupid' and 'intelligent' are not opposites, in fact all too frequently they can be found working happily together. Some of the smartest people I know do, and think, the dumbest things.
MPs, by and large are simply the monkeys dancing to the tune of the organ grinder/s. Those wankers -- mostly greedy people intent on embiggening their parasitic hold on the general population -- can be and often are spectacularly stupid, but the sad thing is that the consequences of their stupidity tends to fall first and hardest on the heads of those least able to protect themselves, and then on all of us.
It's not all bad news, but we really cannot afford to be complacent; as the aphorism goes: for wicked (and stupid) people to flourish it only requires good (and wise) people to do nothing.