B..
There is a difference between "working relentlessly" and PUSHING relentlessly. Successful people tend to have a goal in mind, and work at that, until the goal is achieved. Extremely competitive people push OTHER people, and them selves, until they are better.
In actuality VERY competitive people (in real life) are not usually very successful. They actual unravel, quite a bit. They push, to their detriment. They push others, they push beyond their capabilities, they push unrealistically. Successful people, on the other hand achieve goals. There only competition is really themselves, and they have to work around limitations, and be clever and flexible in how the achieve their goals. Competitive people see everything and everyone, as a threat and competitor. (Even when they are not.)
As someone who played at a VERY high level in sports, I will say there are some competitive people in sports. They will step on everyone to get ahead. Usually, they aren't they best players, and the worst teammates. Sports are MOSTLY filled with people who have a gift, and see there sport as a sort of job. If they are a defender, there job is to defend, and consider themselves the last line of defense. However, they don't consider their jobs to be better then everyone, and take everyone down. Successful people, can work as a team. People who are simply competitors, can't. They actually rarely achieve goals.
Olympic athletes and elite athletes, are people who recognize they have a gift, and are COMPETITIVE for their goals, they aren't COMPETITORS. See the difference? They give all of themselves to achieve their dreams. Competitors are worried about everyone else around them. They take everything from everyone else, so they also can't be considered the best. Big, BIG difference.