Because a consultant has almost as many requirements as a successful person.
Several excellent consultants around me have either become their own bosses or reached very high positions. I even have a little sister who has been a director for three years.
Of course, it is really difficult for consultants to do a good job, and they need to pay too much. Some people say, "Whether the consultation can be done well is not a question of ability." I think good consultation depends on personality, ability, habit and attitude!
Although it is difficult to do a good consultation, it is easy to do other things with good consultation!