For every decision a 'man' makes, he makes it with the best of the depth of knowledge he possess at that particular instant and the quality of experiences he's passed through. It's not an excuse though for mediocrity, but an avenue to learn, rise, and conquer your inefficient self. By inference, beyond an extreme line, there might not necessarily be a qualification of a choice as wrong or right, but an avenue to grow depending on how the intricacies of such a choice and its consequences are handled.