Why would it be at all profitable? It's costs *millions* to get up there, and sync in an orbit. Any two items touching each other is considered highly risky and difficult (shuttle docking, etc.).
It would take *months* of mission control to get the things in the right place and tons and tons and tons of fuel to do anything useful, even on your way to somewhere else. Not to mention the "traffic control" of navigating those points. Then you have to attach and retrieve and (somehow) recover objects that were never designed to be attached to, or returned to Earth (i.e. no heat-shields for re-entry etc.) or attempt in-orbit repair of something that is broken in an unknown way (and could quite possibly just be solar flare / small almost-light-speed particle damage etc.). They are probably all fuel-expired / dangerously out of control.
If they are military, it would almost certainly start a war. If they aren't they won't be holding anything "important" - probably just relay satellites that never actually do much else but process and transport a signal. Plus, they are still "owned" by the companies in charge (or their creditors if they went bankrupt) so it's quite literally theft if it's without their permission - salvage only really applies if the owners aren't known, no longer exist, or they voluntarily abandon them forever and give permission for salvage. They are all probably quite outdated compared to anything that could be launched with the "recovery mission" for the same price. You could probably put four or five equivalent satellites in orbit for the same price as recovering/fixing one.
Plus, the chances of being able to repair, diagnose and put back any of them into service is extraordinarily tiny, even if you brought them back to Earth.