Taxing the Super Rich

As so often with this government, there is plenty to be appalled at in its proposals on cutting Tax Avoidence.  There is the cynicism that the proposals are simply designed to put George Osborne back on the front foot after his failed budget, there is the hypocrisy of a group of tax avoiding ministers inveighing against tax avoidance, and there is the incoherence of clamping down on charitable giving from a government that has championed the "Big Society". 

Nonetheless, does it not occur to the charities etc. protesting, that if the very rich are simply donating as a means of tax avoidence there might not be much sincerity in their philanthropy?  Perhaps things like universities might be paid for out of old fashioned taxes instead?