Not likely. On Emperor level, if I play militarictic Civ, I get around 40-50 MGLs for whole game.If not militarictic civ - around 25-30, twice less. In my last game, 1430 year now, around dicovery of refining, still having 30 % from world I got my 20th MGL. In War Academy there is a topic about leader farming - very usefull I found it, I persue GLs each turn where its possible. My best result was 7 MGLs per turn. Still trying to beat it. On higher levels they can be more I guess. Problem is, there is no so much troops which can be killed for one turn. Maybe on higher level, I'll move soon to demigod