same do unsuccesful ones. They usually overappreciate luck of succesful people from what I see, as a way of coping, many say "that guy was just lucky, i was unlucky". If you dig deeper, that person wasn't just "unlucky", they lacked the persistence, work ethics and other qualities compared to other succesful ones.
Of course, there are degrees and exceptions on every side, but the coping mechanism is very strong among people.