I think one of the unfortunate things about our societies is that we so strongly believe "if it ain't broke, don't fix it." It can be a useful piece of advice, but we should always be looking to improve things. Hell, it's what low level research is about. Just technically everything is broken, just how much. Similarly like "move fast and break things." It can be great but it leaves a wake of destruction and tech debt. Sometimes you go faster by fixing things first instead of hacking around things and compounding.
How I think about it is that it is cheaper to perform maintenance rather than fixing things. Yet it is always easier to push off maintenance because other things are high priority. But in the long run this is far more costly. So we should often be fixing things before they are broken. But like all things, nothing is absolute ;)