PrimeWire

Ex-Colonel Harold “Harry” Maybourne, aka King Arkhan I, was the initial ringleader of the rogue NID operation. Eventually SG-1 finds evidence incriminating him for treason; he defects to the Russians and helps them set up their own abortive Stargate Program. And, he was exposed for running the off-world NID theft ring.
It does appear that Maybourne was never truly loyal to anyone. Arrogant (thinking very highly of himself, his abilities and his weak moral compass) and self-serving, he was more about looking out for number one. I for one, like Sam (okay so I’ve got a crush on her), have little time and patience for such people.
It took him ages to grow up and eventually redeem himself. That said, he was quite an entertaining bad guy character and a good foil for Jack and in my opinion, Tom McBeath was very well cast, playing the role of Maybourne in a most convincing way.