filtering long prefixes

As my company ( as gotten the network
assignment as recently as _10_ days ago (from the Internic, after
endless fights against the small brains that wouldn't want to see
the usefulness of route aggregation; and yes: it's routed by Sprint),
isn't the Internic committing some terrible crime against the public ,
err: network , here ?

Now, would someone please explain in no more than 5-10 lines why the
old class-A and class-B space is NOT hacked into smaller than /8 and
/16 assignments, or at least shouldn't ?