There is also a big difference between training with a sports mentality and a combative mentality. It's all in the intent. Training with a sports mentality should only be a start and not the end. Winning should not hinder your growth but serve as a challenge to oneself. Conquering the arena of life is what everyone should strive for. Obtaining trophies, medals and awards does not give you a bulletproof vest out in the real world. These merits are even sometimes seen as a bullseye by your competitors. It pays to be top dog yes, but it also comes with responsibility. Winning at competitions or tournaments should only enhance your ability and not a limiting factor. Complacency is a mortal sin. Anyone can brag about obtaining certificates and belts from different arts but it does not automatically make you a good fighter. It only shows you are a good businessman since you've invested in knowledge where you may earn money from in the future.
In the end, no matter how much martial arts training you have done, it does not mean your life is already insured. But it's always better to be equipped in case the need arises.
Train with a good purpose. An ounce of prevention is better than a pound of cure.