I read the comment not as saying that other people are not willing to work hard and function autonomously, but rather that they may have a harder time than the OP did transferring those capabilities into the right practical activities for the success of the company without review/feedback, and if that is not recognized, their lack of success could be incorrectly interpreted as a lack of willingness to work hard or ability to function autonomously, rather than a lack of the same background that allowed the OP to apply the same capabilities without review/feedback.