I once worked for a company where they operated in the red for 95% of the year as they paid for project material costs up front. The CFO was quite open about how finances worked in our niche sector.
A client would pay an invoice and the balance would swing from -£20M to £0 and back down to -£15M for the next project within weeks! Revenue was in the £100Ms per annum.
As someone with almost zero business background it was a real eye opener how much we depended on a healthy relationship with the local bank manager. The business model clearly worked as they passed their 30th anniversary during my employment!
Ethics will depend on the developer's needs at the time, and there is a big difference between ethics of the developer themselves and their employer's ethics.
They may take a less ethical job to put food on the table for their family.
They may take a less ethical job to build a financial buffer zone allowing them to take a more ethical one in the future.
They might not have the luxury of working a more ethical job - either picking the least worst option or perhaps only option due to reasons far beyond their control.
I consider myself extremely fortunate that - so far - I've always been able to avoid industries on my moral blacklist.
It's a psychological addition of being stoned and slightly detached from reality - no different to people munching pills every weekend at a rave or drinking enough to be tipsy (or wasted, if that's your thing)
Employment at a below market rate might be the only job some people can get due to events in their past i.e someone with a criminal record that puts most employers out of reach.
There is a large talent pool who want to get their lives back on track.
I'm curious how your platform might avoid false positives with intentionally repetitive music, in particular techno (either produced via a DAW or hardware).
I have little interest in doing a DJ set in public but I'll spend hours crate digging for new music and mixing circular black slabs of vinyl for nothing more than the love of the craft.
These days many DJs are booked on their social media following not their skills or musical knowledge.
The market is completely flooded and promotors cannot practically sift through the sheer volume of mixes published online -- so they go by Internet points instead.