For example: lets talk about Alan Turing, if it were not for the Enigma Machine, and the German naval cryptanalysis, Alan would’ve never tried to break the codes and invent the Turing Machine, and be the pioneer for Artificial Intelligence and modern computers.
So is it that the credit is decided only on basis of who presented the output and seems to be the strongest contender? Why not a system of credit developed to give some amount of recognition to those who affected the path to success?
Because the same applies to the law. When a crime is committed, the laws consider all those who were involved and are asked to give an explanation..
so going back to the question, who decided this credit-giving extent or is it just the idea implanted and carried-on from generations? (Consider the Sorites paradox – here solution depends on our way of comprehension)