Just because MP's get paid a fair amount of money doesn't mean they don't give a toss about those on the lower end of the pay spectrum. Loads of Labour MP's have come from that position themselves, and history has proven they have done what is in their means to help these people a lot more than the Tories.
Being an MP is a job which requires responsibility, and is a difficult job to attain, and for their level of pay isn't actually that great, and they're often only an MP for 5-15 years. Sure they get expenses, but loads of jobs at that level and far less do, and as long as the expense or for work-related things, and travel/ accommodation, then fair enough. Heating stables, not so much.
If MP's were paid crap, and were just general folk of the street with no qualifications, experience or ability then the country would be in a terrible state. The array of skills to do a responsible job like that should be compensated. Or you just have a dictator, probably some extremely wealthy bloke, and things would be 10x worse, and less relatable.
