Was thinking about the way they expanded this whole part of the story, including Kathleen and the fall of the Kansas City QZ... it occurs to me that the show took it pretty dark. First, Henry makes a decision to save one person - Sam - putting his brother's life above what even he sees as right and wrong. This results in Kathleen taking over the resistance, and simultaneously the death of Michael is a galvanizing event that ultimately leads to the overthrow of FEDRA and the end of the QZ, now replaced by the "people". But - still motivated entirely by Henry's betrayal - she ignores what would actually be the right thing to do for those people and is entirely bent on revenge. This leads to the death of literally everyone, including her, and ultimately leads to Henry having to kill Sam (or what's left of him) and then himself.
If you treat this arc like a morality play then the message would seem to be that by putting your family first and acting out of love without regard for the consequences, you just might end up dooming everyone.