Universal Suffrage?

The old cry of the Americans who fought against the taxes of George The Third was, "No Taxation Without Representation!" and it is difficult to see how this could possibly be wrong.
I do not necessarily advocate what I write next but do feel that it is an issue worthy of extended debate.
Is the opposite equally true?
Should there be 'representation for those who withhold taxation?'- in other words, from crooked financiers to the feral underclass when they cheat the rest of society, do they - should they - continue to be enfranchised?
Of the latter group, I suspect that very few would vote in any case but is there not a principle at stake?
This has been brought to the fore with the ECHR's insistence that felons and gaolbirds should have the right to keep their vote - I ask whether the parasitic end of the prison population should even be allowed to vote post release.
Labour would never approve of this as they might consider such people as being potential voters for them!
In the end, much as I would personally like to see such a moral system I suspect it could probably never be. It would create an 'industry' - probably controlled by a quango - which would be littered with litigation and paved with bureaucracy.
I repeat however, that the idea warrants democratic debate.