The difference is this: If you use the letter of the law, an ordinary person has the same chance to find a loophole as the rich. Which will tend to cause them to get closed, because the rich have more money but ordinary people are more numerous, and the ability for ordinary people to exploit them would pressure the government to fix them.

Sometimes this would make the law more complicated, because the situation has intrinsic complexity and you have to enumerate the edge cases. Sometimes it would make the law simpler, because the existing complexity is extraneous and only an opportunity for gamesmanship. But either way it creates an evolutionary pressure for improvement.