I don't know why in words, but I know I love Russel as my brother in ways that are utterly refused to Bushnell. Maybe it's the fact I could save skyking, that there's a sense of loss, a permanent hit to our collective blood quality without him - whereass the zogbot had already been so content in the thrall of evil there's no chance of ever recovering his soul from its clutches?
Maybe my heart just knows a lost cause when I see it.