Although not GS, but having followed these threads and UA's historic actions, which can change, I'd say that if you are over the $50K mark, together with your other travel patterns you describe, you'll have a very good chance for GS solely on your own travel and spend. (See the spreadsheet in this thread's Wikipost, scroll to those based in IAH and note their numbers.)
The corporate manager/influencer category is a separate way that persons not doing lucrative spend on UA at your level can be awarded GS. Usually, it's as a corporate travel manager who clearly directs high level spend of others to GS levels.