Part of my job is to support a system that enforces ethical walls[0].

Here are some of the reasons why this niche isn't a good fit for a low margin business:

These products are complex and require extensive customization to be useful. It's common to require consulting when installing or upgrading them.

Third-party integrations are common; the product that I support integrates with at least 3 third-party services.

The service is valuable to these organizations and they are willing to pay fairly high fees for using it. Why leave money on the table?

Support costs are high due to the complexity of the customer's environment.

[0] https://en.wikipedia.org/wiki/Chinese_wall

You're misidentifying the real problem which is not in the software itself. The real problem is that data needs to be accessed by marketing, analytics, sales, executive, HR, and other parts of the company all the time. It's a human problem managing the impedance of data access blocks... and guess what at most companies the block is seen as a significant cost far greater then the "cost" of PII violations, leaks, or hacks...

But go ahead and find a random group of 3 ex-googlers with no domain experience to raise ~$2MM and chase it anyways. Then when you burn through the money you can go back to your FANNG job with a nice raise.

Bolting tools on to an org doesn't fix its culture.