Most people have very little control over all of the power of the computers in their hands every day. But being able to fully control this power for my uses is extremely satisfying. I feel like I control some of the means of production. Even most junior/mid-level engineers cannot control their computer like this. Not to be mean, but those are some skill issues. Those who run Windows have no hope of ever fully controlling their own machine. Mac users might. Processing/ingesting/transforming ~10 million rows per second is no joke. Sometimes being competent is just fun. Sometimes taking full advantage of living in the 21st century is a little fun.
Here is a spicy take: if you are a backend software engineer and you never see a chart like the one above, then you are (likely) a bad engineer. I guess if you only work on user-interfaces, then you should never see the above chart.