Kia Joorabchian also contrasted City manager Roberto Mancini's "very direct" style with that of Manchester United boss Sir Alex Ferguson and Arsenal manager Arsene Wenger.
Asked about the relationship between Tevez and Mancini, Joorabchian told the Leaders in Football conference: "This is a personal relationship between two people. We have seen this happen all through the summer."
He added: "We have seen [Cesc] Fabregas, [Samir] Nasri and [Luka] Modric the list goes on but they are the high-profile names who have handed in transfer requests, refused to travel, refused to play. That is a problem in general.
"My opinion is they refused to play in a different way and those managers and the clubs handled them very differently. Roberto has his style of management and it is very direct and very different to Sir Alex Ferguson, Arsene Wenger or Carlo Ancelotti."
Joorabchian insisted Tevez did not refuse to come on as a substitute for City during their defeat by Bayern Munich - and claimed post-match comments by the player suggesting he had done so were wrongly translated by a club interpreter.
Tevez is currently serving a two-week suspension pending a club investigation that he allegedly disobeyed Mancini's instructions. Tevez's initial post-match comment was translated by a City employee as: "I did not feel right to play so I did not."
Joorabchian said: "If you don't have a very professional interpreter you have a problem. The interpretation was incorrect. Both questions and both answers from Carlos were interpreted incorrectly."
Sky News have since had the interview interpreted independently, but in their translation Tevez still appears to confirm he decided not to play.
That translation states Tevez saying: "It's just that I didn't want to go in because I thought I was unwell. I wasn't emotionally well, and I thought it better not to. I felt that it wasn't suitable that I go on because my head wasn't in the right place."
Source: PA
Source: PA