What akainu provoked to squardo kinda makes sense, WB literally "sells" his crew and only care for some of his important strong commanders. The weak and unnecessary ones are just ignored.
Let's say WB managed to save ace and went back to new world safely, how about his other fodder crews/allies (who he considers as family) who died or captured? They just died and forgotten (and wont be saved) meanwhile the safe ones continue living the life finding another new crew.