> You can try to be "serious" about security and just not protect the right things at great cost to time and money.

Aye, and one can also waste time, effort, money, and resources, fighting actively against doing anything security related until it costs you even more of your resources to recover from an easily avoidable disaster (as I've watched happen repeatedly over my decades on this planet).

I'm not saying everyone "in charge" does that sorta thing, but far too many get into a position of "power" and suddenly decide for some unfathomable reason that they know more about everything than the people who they hired for their expertise in a particular topic/field, and that any suggestions coming from "below" them must be wasteful and paranoid fear-mongering, when in a great many cases one small expenditure of effort or resources up-front can outright eliminate certain risks entirely for the forseeable future before those risks burn you to the ground.