So if I make $0.10 of profit, all my decisions are validated? What if we knew that Maccas could have made $20 billion, but ignoring qualitative data reduced th

So if I make $0.10 of profit, all my decisions are validated? What if we knew that Maccas could have made $20 billion, but ignoring qualitative data reduced their profits to $8.563 billion. Do those decisions still look smart?