Need clarification on one plot point

Unless I'm missing something, the flurry of flashback-memory stuff at the end about "the pre-nup" and romantic standing around half-naked w/ the wife only makes any sense if Jean Jacket was running another scam on top of the gang's kidnapping, with the design of diverting all the ransom money, ultimately to share with the wife, and somehow resulting in the death of the tycoon husband and probably the gang leader too, though maybe not his friend, the handcuffed guy. I think this amount of corpses would imply the end of his undercover career as well. Provided they can steer away police suspicion from her, he & the wife live happily ever after with the cash. This was the situation he was not-so-conveniently released from once the plan broke down in multiple ways.

At the end the two screw-up cops in the Explorer talk about how long he'd been undercover so he wouldn't necessarily be wearing a GPS constantly in lieu of some other established check-in protocol.