Toppers in hackerrank, leetcode created any products that is used by millions? Coding test or any test in that matter can't be used to measure a person intellig

Toppers in hackerrank, leetcode created any products that is used by millions? Coding test or any test in that matter can't be used to measure a person intelligence. Because we are yet to understand & define what is intelligence?. To be successful in any job, you need a passion in it, working with people & audacity to bring in change.