Mt 4:19 Then He said to them, "Follow Me, and I will make you fishers of men."
Mr 1:17 Then Jesus said to them, "Follow Me, and I will make you become fishers of men."
If there's one group of Christians that Nicolaitans don't like, it's soul-winners. It is possible to be a soul-winner without following Christ, as Judas did, but it is impossible to be following Christ if you're not a soul-winner or growing into one.
The phrase "soul-winner" does not appear in the Bible, and I am defining a soul-winner to be a person who fishes for converts. People who witness, who invite visitors, who drive people to church, who show Christian films in public places, who preach how to be saved, who hand out tracts, etc., are fishing for men.
Nicolaitans seek power that God doesn't want them to have. Soul-winners seek power that God does want them to have: the power to win people to Christ.