Well, that didn't take long
s6e18 "Inquisition" and s6e19 "In the Pale Moonlight"
You're viewing a single thread.
"And if I had to do it all over again, I would. Garak was right about one thing – a guilty conscience is a small price to pay for the safety of the Alpha Quadrant."
Worked out for him, he got to avoid feeling guilty by becoming a wormhole alien.
Are we sure he’s not feeling guilty across the whole of time and space?
Probably not. He didn't appear to feel guilty by the next episode.