We can point to Wenger's reign and offer him the kind of job-security he wouldn't get anywhere else. As long as he delivered the holy grail of top 4 finishes every season, of course.
Seriously though, he seems like a very likable person and a good manager. Liked the part where he talked about keeping the players mentally engaged at all times. Was the first game I saw his team play, but despite the lack of individual quality, they impressed me. Was thinking during the game what it would look like to have the likes of Özil, Alexis, Ramsey, Xhaka et al. play in a such well-coached system that is designed to get the most out of their strengths. Stuff of dreams.