The 25-year-old chose to move to Eastlands from Manchester United in the summer with a number of Europe's top sides also interested in him. Despite accusations he was just cashing in on City's new-found wealth under the ownership of Sheikh Mansour Bin Zayed Al Nahyan, Joorabchian insists Tevez felt a greater purpose.
"Most importantly, in his discussions with Mark, he asked 'Are you really going to build a great team to achieve something?'," said Joorabchian, who previously held the economic rights to Tevez before his £25.5million City transfer. "He took that risk because he believed in what Mark Hughes had told him, and that was the main deciding factor for him."
Joorabchian added on talkSPORT: "The decision that Carlos made was very well thought out.
"His thought processes were very long. On a football scale, Carlos first and foremost always thinks about his career and what he wants.
"Carlos has won every single major trophy that he has ever competed in, except for the World Cup.
"In South America he's won the Argentinian championship; he's won best player in Argentina three times in a row - something which neither Pele nor Maradona did.
"He's won the Brazilian championship; he won the Champions League; he's won the Premier League; he won the Copa Libertadores.
"When he was making his decision he wanted a club that had a lot of ambition where he could actually achieve some great things, [a club] that had not actually achieved that greatness."