Eventually, sure, the trend will die down. But given that the demand has been generally increasing for decades, I don't see a reason to think that it will die down until decades from now.

Look around and you see terrible software everywhere. The medical industry, the legal industry, the insurance industry, small businesses, government entities, etc etc. Almost all of them have terrible websites, terrible internal tools, terrible uptimes, terrible everything. Billions of manhours are spent on tasks that could be better done by software. There's good money in solving those problems, the problem is that there's only so many good engineers in the world, and the hot technology companies snatch up almost all of them.

They say that software is eating the world, and it's true, but so far the world is only 5% eaten. There's plenty of work left to do.