Dad: I want you to marry a girl of my choice.
Son: No.
Dad: The girl is Bill Gates' daughter.
Son: In that case, okay!

Dad goes to Bill Gates

Dad: I want your daughter to marry my son.
Bill Gates: No.
Dad: My son is the CEO of World Bank.
Bill Gates: In that case, okay!

Dad goes to the President of the World Bank

Dad: Appoint my son as the CEO of your bank.
President: No!
Dad: He is the son-in-law of Bill Gates.
President: In That case, okay!
And that's how you do business.