Pacquiao has shut off his gym from media access for the last two weeks to hunker down for the May 2 challenge of fighting unbeaten
The eight-division world champion from the Philippines expressed enthusiasm for the bout as the days tick away toward an event expected to shatter pay-per-view sales.
A day after Mayweather, 38, told reporters he no longer looks forward to the grind of training like he once did, Pacquiao, 36, said "boxing is my passion."
"I'm enjoying this, giving honor to my country, giving an exciting fight to my fans. I don't want to be a materialistic person.
"If you think like [Mayweather], you're going to be a materialistic person."
Mayweather is earning 60% of the purse compared to Pacquiao's 40%, and it has been estimated Mayweather could earn nearly $200 million for the bout that has been anticipated for more than five years.
Pacquiao also shrugged off Mayweather's comments at his Tuesday media day that the Filipino is a "reckless" fighter, aiming some jabs at Mayweather's elusive defense-first style.
"That's why people like me, to make an exciting fight," Pacquiao said after knocking down Chris Algieri a personal-best six times in November in Macao. "We call this boxing. Punching -- that's boxing."
Pacquiao reiterated the fight will be entertaining even if it has been more than half a decade since it was first discussed.
"The killer instinct is still there," he said, adding that if Mayweather tries to go toe to toe, "that's what I want. That's what the fans want: action."
Yet, Pacquiao hasn't knocked out an opponent since stopping Miguel Cotto in 2009, and Mayweather has a sturdy chin, so odds are the bout will go the distance and be decided by the judges.
How does Pacquiao feel about three officials determining the bout in Mayweather's hometown, less than three years after it was widely considered Pacquiao was robbed of a victory in a bout against