Not exactly. Despite the system being "fully automated", they still need to be babysit. The traders mostly babysit the execution of the trades to make sure it's performing as planned. Also, there are programming errors, things going down, etc. Thousands of unplanned things that can happen that the programmer/quant didn't account in the software that happens in real life.
But most quants find that job "boring" because it's not as intellectually challenging as building complex math models and implementing in production. So a lot of quants stuck being quants forever and top out at $500K/yr which in itself is a decent living though probably not that great if you live in NYC, London, Singapore, HK, etc. Very expensive cities. Definitely upper middle class income.
The quants who have guts transition over to quant trading in some years pull down 7 figure bonuses. In mediocre years, they get little to no bonuses. In really bad year, they will get fired!