Silent Man isn't the most commendable one
The silent man didn't actively kill anyone, but his non-vote still factored in the overall vote counts. Hence, the silent man still played a role in the affair. For example, near the end, his non-vote resulted in the death of the fake-wife because they expected the silent man to force a tie. The one-armed person also lost by one-vote, so the silent man may deserve some blame for that death.
In actuality, the most commendable person is the 16-year-old boy who willingly sacrificed himself to give the group 2 minutes. I would have done the same if I were in the situation.
I'd also praise the illegal alien for killing himself once he saw himself tied with the little girl.