But they were giving to a charity. One not nearly as corrupt as your right-wing sources like to think it is. It did not make the Clintons rich - they did not take any money from the foundation. Poor African farmers did, but not Hillary.
Many of those people - heads of state, nobel prize winners, prominent businessmen - she would have met with anyway.
And - most importantly - I see no evidence that there was any effect on US policy.
So if this was "pay for play," it was a really poorly done, on all sides.
Link: http://www.factcheck.org/2015/06/where-does-clinton-foundation-money-go/