For example, as an avid World of Warcraft player Blizzard has made some questionable decisions in the games design within the last few years. Before in order to get the most powerful items in the game you had to devote some time to not only making friends, but working together as a team to defeat bosses. As I am sure you can imagine this would have required many hours a week in order to achieve. As time went on they decided the best option for their game was an experience where everyone was able to get the items while seeing the content the game had to offer. Gone was the sense of achievement with getting a cool new piece of gear for your character because a majority of the player base now an easy access to gear. It is so bad that you can just show up and stand there, do nothing, and still have the same chance of getting cool items as someone who actually contributes.
You play video games (at least the one you mentioned, when raiding) to have fun, and if only 5% of the players think it's fun and only the players without a job or social life can afford to get the best gear; then something has to be done if all players are to have fun. This has (IMO) nothing to do with real life or professional sports careers where succeeding is something else entirely than in a video game. WoW raiding has nothing to do with making a living.