And so is art and entertainment. Comedy, the list goes on.
Everything has its place in this world. It's like an ecosystem, you can fill your belly with potatoes, but your soul can only be nourished by art and introspective.
It's the same with video games. Skyrim can be considered therapeutic in some way. Speedruns are a marvel of exploitation of in-game systems achieving records unthinkable to some. It's all for the records. I recommend taking a look at Karl Jobst YouTube channel to learn more about it.
Therefore, being good at a video game is important. It gives people energy and motivation in times of strife. It's pure dedication in achieving. Life isn't all physical and manual labor.