Dilbert is not a normal person - he is an Engineer.
Of course the only normal people are engineers. Women like to marry engineers because there are no surprises and they usually have decent jobs.
The above viewpoint is from a male, since Dilbert has been largely incapable of getting any woman to go out with him. Even his mother, dog, cat and rat treat him with unconcealed contempt.
The above viewpoint is from a female, since its hard to realize the true love within the vast limitless ranges of cyberspace she is lost within the many choices of the right people for the job of marriage courtship.
Hence Dilbert is not a normal person.
The TV version of Dilbert was excellent, so naturally the management decided to cancel it after 2 seasons.