No, perhaps "responsible" is not the right word - accountable might be better.  Each of us can only be damned for those things that we "will", I agree.  Does this mean that we don't have some complicity in the sin, however remote, if we fail to do what we can to mitigate that?  I believe that, in some sense, "tolerance" can be "complicity";  I convict myself of that all the time.
I don't think in my read of Church action and (admittedly selective) Scripture, that we are totally free of corporate accountability and I believe this particularly true of those appointed to teach, our bishops.  For example, on First Fridays we atone for offenses against the Blessed Sacrament, making reparation for the sins of others.  While not accounted guilty of their sin, we atone for something done by others.  Likewise, in a corporate sense then, bishops may be said to be accountable for their brother bishops and, I feel (not something you will usually read from me), that public atonement is appropriate.