Like I said, if it was you, wouldn't you also be afraid to lose a big contract? I would.
In all honesty I've never had $100 million in front of me, so I can't answer your question.
I do know that I'm unusually competitive at sports, I hate to lose/get beat. I've sprained an ankle, pulled my chest muscles on both sides, broke four fingers in one game, numerous minor strains/sprains, pulled my hammy, hyper-extended my elbow and knee, had my nose broken multiple times, lost a tooth, multiple black eyes on multiple occasions, split my head open just above my eyelid, split the back of my head open on the ice, multiple concussions, had my big toenail ripped off, bruises / bone bruises were very common, took a baseball bat to the side of my head, took a baseball bat to my shin, been beaned (baseball) so many times I can't count them, had my hands, feet, legs, ears raked by cleats, heat exhaustion, dehydration (hospitalized for a few hours the last two). I'm sure there are more that I don't remember and that was all for the love of competition and I still love to compete, even after all that abuse. If you are a competitor, it's hard not to compete at an all out level. I personally feel like I'm being shady if I sandbag my effort, I might have a different opinion if I had $100 mil on the line.