Most penalized teams in 2014:
1. Seattle
2. New England
Most penalized players in 2014:
1. Browner - NE
2. Bennett - Sea
Source: http://www.nflpenalties.com/
Sorry, you were saying something about penalties losing games?
According to this site, Incognito has not led the league in penalties in any year on or after 2009, but it doesn't go any farther back than that. So even if penalties did lose games, which they don't seem to, you're clinging to very old history to claim that Incognito is a league-leader in penalties.
Would you also not accept Browner or Bennett on your team? What about Richard Sherman? Russell Okung? These players on championship teams all have more penalties than Incognito in his last full year, 2012.
Here are Incognito's penalties from 2012, when he was somewhere around 60th in the league in penalties:
Offensive Holding (4), Unnecessary Roughness (2), False Start (1)
Here's the same for Russell Okung, 2012 pro-bowl LT (a pro-bowler that year):
False Start (8), Offensive Holding (5)
Clearly, Incognito is history's greatest monster.