PSG chairman Nasser Al-Khelaifi added that Neymar could have earned more money at another club.
The Ligue 1 club’s total outlay on the Brazilian is expected to be £400m.
Asked at his official unveiling at the Parc des Princes if he was motivated by money, Neymar replied: “What I say to these people is they don’t know anything about my personal life. I was never motivated by money.
“If I was following the money, I would be somewhere else, with other clubs in other countries. I’m really sad that people still think that way and I’m glad that PSG believe in me.”
Al-Khelaifi added: “Neymar came here for motivation, a project that he believed in. He can get much more money than we give him, that’s for sure.”