sainen
Elder Lich
I'd argue that the Spear is a different kettle of fish entirely, and can't be compared to Gabriel's Wings.They are basically a trophy. A dangerous one. One that could potentially be used. I'm willing to bet that if John decided to break into wherever Paul keeps the Spear of Destiny and take it to be used in some sort of ritual that would permanently consume it, Paul would be very upset.
The wings belong to John by right of conquest. He fought and bled for them. He is responsible for them. Just using them without his consent or a significant compensation is not a proper thing to do. At all.
also I'd be willing to bet that the new lord of order and chaos will be just fine with OL sticking it to Hell using his patented Planned Chaos Methodology, maybe a little annoyed he wasn't asked first but the outcome is something that he'd call a win so it's ok.