The growth of casual cruelty, and public humiliation, in the name of entertainment, shows just how selfish, inconsiderate and uncivilised we have become.
Even characters like that portrayed by the terminally smug Ricky Gervaise, mock the socially inadequate, and hold their frailties up to the world, for them to laugh at.
Take a look at what comedy has become. Now that it is non PC to make Irish or other racial jokes, what happens? Father Ted, and Mrs Brown's Boys! It's all changed from laughing at the racial stereotypes, to laughing with them.
The same dichotomy exists linguistically, where forbidden words that were once used by "us", to describe "them", are now common currency amongst those who would bridle, were we to use them, on them.
It's becoming, don't laugh at us, unless we give permission, for you to do so.
So look around, before you laugh at something, that the PC brigade might disapprove of ;)
We all do it, and I think that it's not the laughing that's wrong. It's the feeling guilty afterwards, that seems slightly odd.