Peer pressure in this case is useless. Google, more or less, is bound by law not to pay taxes that can be avoided. Say Google handed UK a check for $100 millio

Peer pressure in this case is useless. Google, more or less, is bound by law not to pay taxes that can be avoided. Say Google handed UK a check for $100 million in 'extra' taxes. is that enough? Why not pay $500 million?