Close! A drop in the bucket! Which is why it’s important the bucket is always getting larger, that way everything is a drop and no single thing is worth making more efficient!
There are lots of single things worth making more efficient. This isn't one of them. This isn't even remotely close to the top decile of the list. This is probably in the last 5% of things you'd want to fix.
It's not principled to solve problems in stupid ways, it's actually just stupid.
Here's where someone who has thought about the problem for more than 5 seconds would likely start: gigantic healthcare organizations defrauding Medicare, in particular vertically integrated pay-viders.
Literally tens of billions of dollars per year in known, easily detectable fraud.
Sort your list by dollars saved divided by human-hours required to achieve, and add a column with likelihood of success after 2 years.
Yeah, "software subscriptions" is nowhere near the top. You lack a sense of scale.
Right. A couple hours to instantly save millions by looking at active vs purchased licences is barely worth the effort. Exactly what is the threshold where people with your perspective won’t handwave away explicit irrefutable waste and say “oh that? who cares it’s nothing”?
A rounding error!