People with less than others often begrudge what others have worked hard for. Larger salaries are justified in a lot of cases whilst others are, quite frankly, obscene as in the case of footballers etc.
I can understand David Cameron wanting to make some sort of gesture, but I do think he would be taken far more seriously if he were to rid the party of members who the public are offended by. To accept crooks, liars, and cheats into one’s party is seen to be condoning their behaviour. We want to be assured that the party we vote for is as clear of these people as is possible.
How can we trust a party that accepts back into their fold people known to be in that group aforementioned? That is the type of gesture I personally would like to see.