There is a world of difference between being indifferent to a de-personalised "phantom" that exists as no more than a disembodied loud exhaust note and actually wishing specific harm on someone. When I hear a loud exhaust - car or bike - it does annoy me to the point where I am ambivalent to their fate but I am no more likely to gain any form of pleasure from seeing someone hurt than anyone else and certainly would never put anyone's life at risk (I have had to take evasive action to avoid stupid, thoughtless driving as much as anyone else).
I live in a small village - 30 mph limit - that is in the countryside. Not only are we treated every single weekend from spring to autumn to the scream of (mostly) motorbike engines as the riders redline their unsilenced bikes on the nearby dual carriageway (up the sliproad, through every gear, probably maxing at 100+mph) but we also have a couple of riders on unsilenced bikes who ride through the village every day at unsocial hours flat out (60+ mph, full acceleration). One comes through at around 10.45pm every week night and the other (on a screaming moped) at around 6 in the morning, most mornings. When the late night rider gets stopped at the traffic lights, that's his (? Could be a woman) cue for a racing start. We also get cars doing it, but loud exhausts are more common - and seem louder - on bikes.
Do these people care one jot about the misery they cause? No they don't. In fact, it is clear that in some warped way they take pleasure in treating the villagers to the glorious sound of their motorbikes and cars. Do they respect the village speed limit? No, and several cats have been run over in the years I have lived there. Indeed, my next door neighbour has been run down but thankfully was not hurt badly.
What do we do about these people and their blatantly anti-social behaviour? The Police seem to have bigger issues so we all just live with it. So, I ask myself, how do I feel about anti-social selfish people who have no thought for others? I don't care about them at all particularly. And if one falls off his bike or crashes his car because of reckless speeding (which is directly proportional to engine noise levels) then do I care? No. And I suspect a lot of other people feel the same way, too.