What he had to offer--his bright ideas were not unusual. But I think Sun Yat-sen's a very appealing figure, because when you come down to why he had influence it was because of his sincerity.
但別忘了，光是在蘇俄和中國大陸，共產黨員及「既得利益」者就數以百萬計，對他們來說，共產制度垮台是非常難受的。