The narrow skillset of chess doesn't translate well onto the broader stage.
The ability to patiently sit and consider/analyze before acting can be useful though.
The discipline that long, serious chess usually requires can be instilled as a good habit that would generally be useful outside of chess.
Is there really help that chess can give to improve one's intelligence? Is a chess player better prepared for his job than a non player or the other way around. What about attitude and orientation? Does he have any advantage. What do you think?