I was equally gobsmacked and LIVID when I heard this on the radio this morning.
Because privately educated children have faultless morals? 
Is a load of state school teacher bashing.
Dd's school has loads of phse, philosophy for children and circle time talking about good choices, bad choices, bullying, internet safety, doing the right thing ad infinitum.
I know a teacher at Westminster who has to deal with immensely pressured kids from very pushy families. My nephews and nieces are all privately educated. I can see no difference between their moral compasses and those of my own state-educated children, apart from perhaps a little less tolerance of "difference" in the privately educated kids which they all grew out of by the time they went to university.