Yeah. That's the general GTO way to think about it. The thing is that in a $1 online tourney, you should be playing exploitatively. In these games I try to let my opponents make a many mistakes as possible. A lot of players would play this way with a busted flush draw and sometimes the really bad players with KQ high to be honest. I might play this way with a draw to exploit people that fold too much. If I get someone to fold top pair here that's a huge win. For that reason, it could be a huge mistake to fold here. It's a little over a 2/3 pot sized bet on the river, so you only have to be right about 40% of the time to win a big pot. If you're wrong you lose 2/3rds pot and you can usually rebuy in these tournaments. Higher stake tournaments are a whole different beast, but in a dollar tourney I'm kind of a calling station...
In this spot with like 9c8c, if you could get any pair or even K-10 high to fold 40% of the time on the river for 2/3rds pot, you're printing money. Not to mention if they fold an Ace. Any pair but an Ace is definitely folding to that river bet. It's usually the only way to win with 9 high there. Look into autoprofit bet sizings.