A shadchan (matchmaker) goes to see a poor man and says, "I want to arrange a marriage for your son."
The poor man replies, "I never interfere in my son's life."
The shadchan responds, "But the girl is Lord Rothschild's daughter."
"Well, in that case..."
Next, the shadchan approaches Lord Rothschild. "I have a husband for your daughter."
"But my daughter is too young to marry."
"But this young man is already a vice president of the World Bank."
"Ah, in that case..."
Finally, the shadchan goes to see the president of the World Bank.
"I have a young man to recommend to you as a vice president."
"But I already have more vice presidents than I need."
"But this young man is Lord Rothschild's son-in-law."
"Ah, in that case...."