(I'll hijack your comment a bit, just want to share my experience working in something related to it)
I've had a chance to work with some HR people who genuinely wanted to improve the work environment on their respective companies (I know! Please believe me, lol).
One of the bigger issues was corruption in general, of which this sort of behavior could fall under. The line of reasoning for that is that people usually resort to these behaviors in order to immorally/unlawfully attain some material benefit to them (it is very strange to find a pure blooded sociopath that just does it for the sake of it). When people artificially distort any system that is set up (for acquisitions, promotions, terminations, you name it) so that it no longer serves the company's interest but that of a group of rogue employees, well ... that's corruption. This framing is nice as it makes company exec's take a look at it from a business' gain/loss perspective instead of "meh, it's just employee's gossip".
Anyway, the proposed solution was a sort of ombudsman for companies (it's actually a tech thing, not an actual person), a private channel where people could raise these issues without fear of retaliation. There cannot be a clear cut criteria by which one could define whether a particular employee is being corrupt or not, but we've observed something like a bi-modal distribution where problematic individuals truly stand out! Quoting Warren Buffet, "there's never just one cockroach in the kitchen"; you usually observe a lot of employees with no comments on them, a few getting like one or two remarks per month (and you can just ignore those, shit happens everyday) and then you have this guy who is getting 10+ comments per week and that's who you really need to sit down with and ask what's going on.
Obviously this relies on the HR person being fair and honest, not part of the plot, and that comes with its own set of caveats; but at least, it's much easier to control that for one person than for 100s. Overall, the whole thing felt like an improvement.
But, conclusion, the app didn't go much farther than being used at a couple companies, and then we realized it would be very hard to monetize, the team disbanded and we all moved on to other things :P.