Entirely.
The actual point behind that question was to gather if you were under the belief that criminals have to be entirely devoid of even the slightest human decency, but thanks for confirming that Batman doesn't exist in your world. It's much better when that stuff is just confined to the comics and related lore.
What? All the people screaming at the warden to push the button (to the point where the guards needed to aim their weapons and fire a warning shot to get everyone to keep their distance), the looks of desolation on a number of their faces afterward, even the fact that Lister mentioned that the prisoners would kill the Warden and take the detonator anyway and you somehow come to the conclusion that there was no displeasure for that decision?
What were they supposed to do afterward? Boo? Start a fight with the biggest, most menacing guy on the boat? Feverishly flail their manacled hands at a nearby window in a futile attempt to retrieve the device? The thing was gone and there was nothing to be done about it, except look around in astonishment. To think that no criminal would have blown the other ferry up is incredibly shortsighted. Lesser stated, just because no one had the stones to work through armed guards to take the thing (at least, at that point) is hardly a reason to assume no one had a problem with it being tossed overboard. The overarching point illustrated on the prison ferry scenario is that one person, though a criminal, had enough courage and character to do what the more upstanding citizen, whom actually had the power (the Warden), should have done, which was to have some semblance of faith that things would resolve themselves in another fashion short of mass murder. It was far from a unilateral statement that every prisoner on the ferry was as noble. They fell on both sides of the issue, though the only one to take action did so centered by morality.
Furthermore, that still doesn't begin to address how that affects criminals who aren't imprisoned or those who will come to be (i.e. the reason for Batman's existence). Or are you of the mind that Lister's decision is somehow determinative of every existing and would-be criminal for the rest of Gotham City's future?