Our bodies require carbs, protein and fat. Protein requirements are generally not too high, the average person requires approximately 50g protein per day and that number can vary. Protein is used throughout the day, not stored long term and excess protein isn't stored as protein, it is either used or stored as fat. Similarly, our bodies require fat but not a lot and extra fat is used as energy or stored into fat. Our bodies require glucose which comes from carbs and is the main source of fuel for our brains and primary choice of energy. Excess carbs are used as fuel, stored in muscle as fuel in the form of glycogen and then stored lastly as fat.
So what I mean to say is protein, fat, carbs - none are inherently bad as we need them all and I wouldn't favor a food item just because it has an abundance of one. Also since I doubt your body could've used all 42 grams of the protein unless the rest of your day was low protein, the rest was either used for energy or stored as fat.
You can't out-exercise poor eating habits.