Maybe because it's not "his" money he is giving away.. It's his campaign money...
Business as usual in Washington!..
"Democratic vice-presidential candidate
Sen. Joseph R. Biden Jr. has paid more than $2 million in campaign cash to his family members, their businesses and employers over the years, a practice that watchdogs criticize as rife with potential conflicts of interest.
The money largely flowed from the coffers of Mr. Biden's failed presidential campaign during the past two years to a company that employs his sister and longtime campaign manager, Valerie Biden Owens, according to campaign disclosure filings.
The senator from Delaware also directed campaign legal work to a Washington lobbying and law firm founded by his son
R. Hunter Biden, the disclosures show. "
Washington Times - Biden routes campaign cash to family, their firms