In counting citation impact, we are always looking at popularity. Many new ideas have little or no popularity at first and only later are seen to be valuable. Hedy Lamar's frequency experiments did not have any citation impact and still have no Nobel Award but they are one of the main principles of cell phone and WiFi.
Although citation impact is one way after the fact of telling what is important out there. It seems to suppress the free imaginative play of the mind. That kind of "play" is often where the great leaps come from.