I want to echo those who mentioned that this list is limited to dead white men of European descent. As such, they represent a sort of inbred intellectualism that scarely rises to the level of "most important".

If it wasn't for the so called "Arabic numbers" being brought to Europe from theisticIndia, along with the concept of Zero, modern science wouldn't even have entered into European life. Suppose you want to have another list, try multiplying XI by II.

Of course, it was nice to see that, inevitably. some Eastern philosophy creep in.

How about:

12."Om" - Krishna