I apparently read Kel very differently from you. His driving goal is to rid the Final Empire of TLR and as many nobles as possible and set up a Skaa government. Alternatively he is revenge personified on TLR for the events surrounding Mare and the Pits.
Below is a copy/past from the Coppermind on the 4th Ideal for a Skybreaker.
As laid out above, this is my take on what he is doing.
Then we have the following note on the 5th Ideal for a Skybreaker.
If we read that as Kel can use any method he chooses in his embodiment of law and truth (which must be a valid reading of the Ideal since there is a faction within the Skybreakers who reads it this way), then combined with the 4th Ideal information, we have exactly what I see in Kel. He's an incredibly focused/driven individual who was initially aimed solely at removing TLR and the nobles from power and setting up a Skaa government.
Now, if you'd like to offer something that contradicts anything I've stated above I'd love to read it. The fact that many different people read Mr. Sanderson's work very differently is one of my favorite things about his writing.
Side note, the original question was "What KR Order Would Kelsier Be?" I fail to read ANYTHING in there that says we are talking about his personality not his powers. So uh, with all due respect, it kinda seems like your argument is the baseless one. I realize it is the internet and all, but Storms, there is no need to throw insults around, especially on that unsound footing.