The answer to that question can only be reliably answered in 5 years.
Actual honest valuation of software is something that requires actual evidence.
Software returns have extremely high variance. From a lot, to none, to high negative (For projects that don't complete, or worse, deploy to negative effect.)
Yep, some software systems become money pits. You end up having to pay more people to keep them running.
Only now if those people you have to pay to keep them running are software developers, you have to act like the money you’re spending on them is helping make new value, not merely paying interest on technical debt. Fun!