More importantly -- what are these people of whom you speak doing about improving their condition? Are they demanding a raise? You have my sympathy if you are the one stuck with an unreasonable employer and feel that you are underpaid: my advice would be to look for a new job and tell your employer where to go once you've found one.
However, if you are not in that category -- I have to say that I've never found the altruistic Guardianista (there -- I've said it!) approach to economic problems to be at all credible. It all smacks of some perverse neo-Christian moralising about what's 'fair' and 'good'. You can nearly always tell that an economic argument is lost when people start speaking about morality. If you want to go to Heaven, you're welcome. Me -- I'd rather go to Disneyland : at least it's actually there (besides, I've never been before).