Ok that OP list was a little skewed. I'm glad Wildcat brought in the historical context because I would have thought that those leaders of continent spanning wars which have set the boundaries of countries and set up problems like Israel would be more influential. It seems that the list is comprised of those who came up with things which led to influential things, kind of like those who laid the foundations. Wouldn't it be interesting if they applied the same priorities to architects and venerated those pouring concrete.
Anyhow I define influential as those who exhibited most torque on today's psychosomatic world (as in subjective and not objective), As such those people who set down what is the foundation stones of the societies in which we live. Those who drew up the constitution, the first laws, thought up how to divide land and wealth. Their influence above all others pervades our every existence from minute to minute.