And don't QA checks typically test for this correct torque level on metal to metal connections like the SWiM-8 module mentioned above?
How could you test for correct torque? The connection must be turning at the time the proper torque value is reached (at which time you immediately stop turning). If you put a torque wrench on to a connector that is torqued to the proper value and apply pressure until you reach 30 inch pounds, you would not see any movement, so the only thing you are verifying is that it is torqued to at least 30 inch pounds (but it could be way more). It would also be possible if you do this to over torque a connector that was previously torqued correctly.
To validate, you would have to loosen the connection and re-torque it properly. Doing that of course would give you no indication as to whether or not it was torqued properly to start with.
To actually test/verify if it were at the correct value, you would have to intentionally over torque it (to say 35 or 40 inch pounds), watching for it to start turning after 30, but before 35. Then you would have to loosen and re-torque to the correct value. But if there is a 30 inch pound spec to start with, over torquing to test could result in damage that you are trying to avoid in the first place.