Zuckerberg can surely afford this, given how little tax his company is paying: in the UK, its tax filings for 2015 show revenues of £210.7m, on which the company paid just £4.17m of taxes – an effective rate of 2% (itself a 1,000-fold increase on what it paid in 2014). Facebook, however, also managed to generate a tax credit of £11m, which it can use to reduce its future tax burden. The disease of tax avoidance is unlikely to be cured by the Chan Zuckerberg initiative.
Who but a dickhead would compare tax paid to turnover?
Unless we’re talking about Stemcor of course.