The 2nd house is the house of accumulated wealth and family. Venus (Shukra) represents the wife (in a male's chart), luxury, and prosperity.
When Venus sits in the 2nd house, the key to the person's financial destiny is literally handed over to their spouse. Dr. Rishi Rohit Sharma reveals a golden rule for this placement: If this man wants to be successful, he MUST take his wife's advice ("patni ki salah") before making any major financial or business decisions.
Her intuition regarding money will be flawless. If he ignores her advice or disrespects her, Venus will turn negative, and his wealth will instantly dry up.