The author obviously uses the word "name" without implicating that it is a surname.
Apparently, the design name + surname + official nickname is proposed.
In general, in order to give an official nickname, you need a special person who will say that the main thing in Anton is his working capacity, and in Vitalia - his falsehood. Therefore, such names have been introduced where there is a strict hierarchy, an attempt to challenge which is equivalent to rejection by society. If there is no authoritative shaman/pahan, then the pursuit system will not work.
But even in the implementation of Indians and rabbits, you will often meet Anton the White Bizon most often and you will understand why he is so named - because he is strong, because he is dumb, or because at the age of 19 he had eaten a half-kilogram of road.