Because I don't want to have a conversation about my game on someone else's comment section, and i can't find a way to DM you, and it is killing me that the feature you mentioned actually already exists but isn't well explained I'm replying here: You earn TP based on the maximum reputation of your best run during that legend loop. Every 150 max reputation gives you 1 TP with no upper limit (diminishing returns through the natural difficulty curve of higher rep resulting in harder missions).
My major take-away from your comment is that I need to put some work into explaining mechanics in game, and it's been put on my backlog to address!