I think we should still do it, we probably will never understand unless we do it, but we have to accept the possibility that if these synths are indeed sentient then they also deserve the basic rights of intelligent living beings.
That raises a lot of ethical concerns. It is not possible to prove or disprove that these synthetic homunculi controllers are sentient and intelligent beings.
Windfalls like this cannot be taking lightly and need to be approached strategically. It depends heavily on tax laws and employee finances overall.
Some common got rich quick concerns off the top of my head: Could accidentally knock people into a higher tax bracket and ruin their finances long term for short term gain. Could accidentally give someone collateral to take out a massive loan they cannot afford long term. Could make someone in a low income area a target before they have a chance to move out. Could accidentally get double taxed by doing the payout incorrectly because they're not practiced with handling this much money. Could overinvest it all back into the company and burn too brightly negating all their success. Doing nothing and simply using it as cash reserves is better than making a foolish mistake and ruining it for themselves.