It was the then Tory party chair, Teresa May, who said they had to stop being 'the nasty party'.
Turns out actually what she meant was 'we have to pretend not to be uncaring bastards in order to get into power, then we can reveal our true colours'.
Btw, you can bitch about the last government all you like - feel free, indeed - but it's a bit much to claim they are solely to blame for the world economic crisis. It started in the States, where one George Bush was in power. IIRC he wasn't exactly left wing...