I don't. And you're right as in his exploits did not happen in a vacuum.

A pervasive theme is that time rumbles by and great men merely cling on and go with it at the right time. The Greeks were in the mood for a rampage and off they went. An Alexander born today won't start conquering foreign lands.

And yet, I can't shake the feeling that there must me something unique to Alexander and others.

Time passes, but not everybody massages it just enough to make a change.