"I know that everybody likes to make fun of Tim Tebow and talk about him, but he sets an outstanding example for people," Umenyiora told reporters at the M&M World store in Times Square, according to the New York Daily News.
"I think if more people would focus and try to be like him and carry themselves the way he does, I think things would be better."
Thirty-one NFL players have reportedly been involved in off-the-field legal issues this offseason, including the Giants' own David Diehl, who was charged with DUI in June.
"For the life of me I can't understand it. It's just ridiculous," Umenyiora said, according to the Bergen Record, when asked about the numerous arrests around the NFL. "People need to be more focused and more grateful for what it is that they have."
Umenyiora recently returned from a trip to Nigeria.
"Coming from where I came from and seeing what I saw, all that poverty, people who have nothing, they would cut off both their legs to be given the opportunity that (NFL players) have," he added. "To be messing around like that is real unfortunate."