I think you'e confusing the term "complimentary player" with "fringe player". This is no insult to Lafleur or Ovechkin, we all know they'e they're great players, that's not the question or the issue at all.
On Pittsburgh, Crosby is the center of the team, the rest are complimentary players, including Malkin. Now, Malkin can be the center of the team, if Crosby is not around, but a guy like Kessel will never be a guy that the team centers on. The Oilers of the 80's had the same scenario with Gretzky, Messier and Kurri. The Oilers of today, moved Taylor Hall, because Hall was the center of the team and they wanted to change that to Connor McDavid. Hall had to go. The Islanders of the 80's had Trottier with Bossy (and many others) as complimentary players. You can look at players like the wings Yzerman or Sakic on the Avs with the complimentary players like Forsberg. Most every team is structured this way and certainly most teams that win the cup.
You mention Montreal. Well, they might be slightly different but through the Lafleur years of the 70's, their team was centered around their veteran players such as Richard and Cournoyer etc. But as good s Lafleur was, he was a complimentary player - so was Shutt.