I would think, instinctively, that anything we put in orbit and then it falls down would be roughtly equal to roughtly 2x the energy we spent to put that mass in orbit in the first place, but maybe I'm missing something obvious.
Also the vast majority of the energy in an orbiting body is not in gravitational potential energy (not that you said that) but in the kinetic energy of the object moving at something like 4.75 miles per second.
The end result is that the energy an object decelerating back into atmo releases is about the same magnitude as the energy of the rocket that got it up there in the first place.
But the energy we put in was with an efficiency below 25 percent (I would guess) so the energy it will release will be equal to a fraction of the energy we put in plus the energy released from oxidizing whatever burns on the way down. But still probably less than it already had put into it.
TLDR inconsequential effects. Not enough mass to matter. 5200 tons of space rock falls on earth every year.