Because, although some DOS attacks follow a 'moral' code (According to whoever's morals are relevant at the time), not every DOS attack does, in the same way th

Because, although some DOS attacks follow a 'moral' code (According to whoever's morals are relevant at the time), not every DOS attack does, in the same way that some people steal from those who have less, some people vandalise state property, some launch wars based on lies. In fact, I'd go as far to say that 'bad' things that happen probably don't have a justifiable moral purpose underpinning them more often than not, and that goes for DOS attacks too.