I'm all over.
Over you. Under you. Through you.
< Insert Evil Laugh >
I love black holes and dying cosmos.
I come from evil politicians and ruthless dictators.
I come from silly children and irresponsible criminals.
I can cause horrible diseases.
The government overregulates me.
But that doesn't stop me.
Mwah Ha Ha.
Nothing can stop me.
Not walls. Not floors. Not Time or Space or Distance.
I OWN THE WORLD!!!
Not that it does me much good.
Sometimes I think of my existence as a giant treadmill.
Hint: Focus on these lines: (Though the correct answer will satisfy ALL clues.)
Nothing can stop me. Not time or...distance. The government regulates me. It can (but often doesn't) cause horrible diseases.
And disregard the evil laughter. It's just there for comic effect and to make the case more stark. This is not actually evil at all. Nor does it literally "own the world."