POs have different incentives - they usually get rewarded for features built. A good PO has lots of ideas, some of those may be good for the product ("we will s

POs have different incentives - they usually get rewarded for features built. A good PO has lots of ideas, some of those may be good for the product ("we will serve more relevant ads if we spy on our users!") and bad for the brand. The ML Ethics teams are usually part of the legal teams and are staffed mainly with lawyers. Not sure how it was with Twitter. It's also entirely possible those teams did not do a very good job, considering what a sh1thole Twitter is, so they may as well do without one.