To me that shows the mentality that is needed to succeed at a level of Professional Sports. Those guys and girls have a higher drive than the average athlete. That is part of the makeup of what is required to make that level of play.
It takes a lot of talent and ability, but you have to work hard to get to that level, look at the guys with a lot of talent but haven't put in the work or have that motivation/mentality and we are talking about players that wasted away their talent.