Just speculation...
Was Vergil chopped to 10000000 little pieces just to fill all those bianco angelo or whatever they are called...
Vergil is obsessed with power....but what would he do with all that power, good things or bad things?
I assume bad things and that makes him evil IMO.
bad things like killing beowolf no he was only obsessed with power he was kinda sociopath but a cool one and not to forget he wanted to be just like sparda means he would pursue the path when he gains more power he may protect all the humans or just kill all demons 4 fun or just hang out with dante they would make one sick team if they ever lived together only "if" *sigh* when he gains more power just like vegeta and goku lol
not exactly i think he just wanted some sundae and pizza everyday like dante
maybe vanilla sundae and rice i think that suits him
they didn't chop him he already busted into shreds in dmc1 so they collected his remains and fused them with those white things