We need to know more about her before we can really judge her. What we've seen is the public face of Quinn, the person she projects herself as, but we don't know the real Quinn yet and it could really go either way. She could be just as terrible and morally bankrupt as some people already believe her to be, or she could actually have a conscience and know that she's doing bad shit but there's a reason why she's having to do it despite this.
We've had five episodes and Quinn has featured prominently in all of them. We've seen plenty of her, both as the MC and in cut-scenes. That's more than enough to start judging her.
And my judgement is exactly what I said: she's a selfish schemer who abuses the trust of those around her and pisses people off as a hobby.
Even if we eventually learn she really is trying to help the HOTs with her schemes, that won't nullify the way she's gone about it. She tazes the MC for no reason. If the MC throws the CUM-petition to avoid being raped, she shoves the condom down his throat. When Riona points out the flaws in Quinn's plan, Quinn slaps her, then offers
Riona as the bait to get money from the MC (assuming he's a customer). When Sage puts her personal feelings aside to set up the party with the preps, Quinn tries to guilt-trip Sage into humiliating herself even even further. She lied about getting money from the jocks - to say nothing of subsequently cheating them out of what they bought. When Tommy is pissed because Quinn couldn't be bothered to admit the HOTs were ditching, she immediately threw Riona under the bus.
How is that not enough of a track record to judge Quinn on? The fact that her actions so far have been relentlessly negative doesn't mean she's entitled to some sort of indulgence until she finally gets around to doing something decent!
As I said, I'm willing to reevalutate Quinn as the story goes on. I'd like to think there's more to her character too, but a) I'm not going to ignore the rest of her actions until then, and b) it won't automatically balance her ledger if and when it does finally happen.