I might have more power than you, but if you wield it more effectively you might exercise more influence in certain settings.
I wield a whip and at the end of the song, I tell the boys to bend over.
Dame Helen Mirren comes out of CIA retirement to wield her weapon in Red, which hits theaters this weekend.
Old English weldan (Mercian), wieldan, wealdan (West Saxon) "to govern, possess, have control over" (class VII strong verb; past tense weold, past participle gewealden), merged with weak verb wyldan, both from Proto-Germanic *wal-t- (cf. Old Saxon and Gothic waldan, Old Frisian walda "to govern, rule," Old Norse valda "to rule, wield, to cause," Old High German waltan, German walten "to rule, govern").
The Germanic words probably are from PIE *waldh- (cf. Old Church Slavonic vlado "to rule," vlasti "power;" Lithuanian veldu "to rule, possess"), from root *wal- "to be strong, to rule" (see valiant).