"There are no small parts - only small actors." Stanislavski knew that the roles were not small - but the acting in them sometimes caused the role to shrink. We like to pair his quote with this rule of thumb, "The smaller the role, the bigger you can be."
While we could not tolerate an entire play where Romeo was as exaggerated as Gregory or Sampson - played well, played BIG - those actors get noticed for the right reasons. They are fresh and different and they bring a different energy to the stage. They can be played as noteworthy.
Take a look at the young man in this video. He has a tiny teeny little role that he didn't even audition for. He has the same role as the other Celts fans, but they do not see their opportunity to play it big. He does.
People remember the performer who fully embraces his role.