Honestly is is just like Insurance. You understand the value of things you are protecting (and simple compliance has a value to you in penalties and liabilities avoided) and make sure it costs more than that to break into your system.
At a corporate level, it is contractually almost identical to insurance, with the product being sold liability for that security, not the security itself.
Right. I sometimes call it meta-level insurance, because it's structurally what it is. Funnily, actual insurance is a critical part of it - it's the ultimate liability sink, discharging whatever liability that didn't get diluted and diffused among all relevant parties.
And, I guess it's fine - it's the general way of dealing with impact that can be fully converted into dollars (i.e. that doesn't cause loss of life or health).