Main duelist players can easily play other roles and succeed if they wanted to, but other role players (initiator, sentinel, smokes) do not have the ability to become duelist players
This is in everyone's subconscious as duelist players are usually the most popular on the team as their mechanics are needed to be a step above everyone to stand out and be the best
There are few exceptions to this rule like Leo where I don't think a duelist player will ever have the same impact as him and being IGL (as it takes a special type of nerd to care more about strats than playing well in-game)
Change my view