An easy way to break this down is simple:
If I have you a choice between the Seahawks winning a SuperBowl, but being found to have some players that have used PEDs later or being a competitive playoff team with no violations but not winning a SuperBowl...which would you choose?
A assure you that a fair amount of fans would pick the first option even with the cost.
Now, what if I gave the choice between the Seahawks winning TWO SuperBowls, but being found to have some players that have used PEDs later OR just winning one with no violations. Which would you choose? I am still betting a reasonable % would still pick the first option.
If you would pick the first option in either scenario, whether you are for cheating or not, you defined the benefits as worth the cost.
Frankly, I don't think it would matter which fan base you posed the question to. If it was the same questions about their team, I am betting near the same % would state the same thing. The only deviations might be teams that already have several SBs recently and don't pine for them as much.