The problem is you have to be noteworthy enough to be considered; and are going to be in close proximity of atrocities (hopefully trying to prevent them). Realistically this means a higher percentage of laureate are now generally accepted to have some complicity in atrocities then the percentage of normal people.
The problem with the Peace Prize in general, or this time? It's not entirely clear to me what you're trying to say.
Which maybe is ok? It’s not a “most perfect person” prize, it’s a “did the most to advance peace” prize.
It makes people uncomfortable, but maybe someone who reduces net suffering despite being responsible for some suffering is doing more than normal people who do no harm, but do no good?