Madrid are said to be on the verge of concluding a world record deal worth around £86m for the Welshman.
Barca coach Martino recently declared his displeasure at the size of the fee claiming that it showed a "lack of respect" to the world outside of football.
Villa agrees with Martino's comments and said that the fee reflects badly on society as a whole.
"I do agree with some comments I heard and I think it's aggressive for a club to pay so much money for a footballer," Villa told Goal.com.
"To pay so many millions of dollars for a football player when there are a lot of workers that won't even earn $100,000 (£63,000) in their lifetimes, I think shows that there is something wrong
"The money spent on Bale is money that society is missing somewhere else."