This is an important variable to consider. For a fighter who was probably pushing 40 -- or might even have been past this milestone -- when he started his pro career, he did pretty damn good, actually.
If you take into account his potential he's had a lacklustre career. IMO he could have been as successful as someone like Povetkin, but whereas Povetkin found his balls after the Wlad debacle and really came into his own towards the latter part of his career Ortiz continued to duck and swerve and take easy touches because he seemed terrified of losing and thus tarnishing his feared bogeyman image. The biggest waste was turning down the Joshua fight, but he also just has a lack of any really big names on his resume. How come fights with the likes of Chisora, Takam, Pulev, or (keeping it Stateside) Stiverne or even Arreola never materialised? Why are the best fighters on his win column Jennings, Martin, Thompson and Scott? It's just frustrating how many fights he hasn't been in considering what he could have done.
Roided Ortiz was pretty great, he would have easily beaten Wilder if they fought that November before they actually fought, unfortunately for him he and his team didn't have the good protocol to not get caught. And if that round he stunned Wilder in when they fought was 30 seconds longer he could have knocked Wilder out cold because he was gone.