Transiting Pluto conjunct natal Saturn

Here's an example of why prediction is difficult: A couple of years ago, I noticed Pluto would conjunct Warren Buffett's Saturn at 5 degrees of Capricorn. It was about the time the financial markets had hit a bottom and everyone--including astrologers--were looking for answers about the world's economic future. So at the time, I interpreted Buffet's chart and the events of his life as reflective of the world economic climate. Wrong. The world seems to have recovered. Somewhat. But Buffett is now under scrutiny as an individual. In January of 2011--when Pluto was conjunct his Saturn--Buffett learned that an employee (who was a potential successor) owned stock in a company which might be bought by Mr. Buffett's company. Pluto will again come back to conjunct Buffett's Saturn between July and September. Will the impact be global (as I had originally perceived) or will it be personal?