Here are the tropes that most EII (and IEE) villains will usually fall into:

http://tvtropes.org/pmwiki/pmwiki.php/Main/WellIntentionedExtremist

http://tvtropes.org/pmwiki/pmwiki.ph...tifiesTheMeans

Basically a villain of this nature usually has humanitarian/utopian ideals they have taken way too far and will not compromise on. Even worse, they have somehow got into a position of power, leading to extremely negative consequences for everyone around them.

The protagonist in a situation like this will probably be a Ni ego anti-hero of some sort, the moral theme being that good intentions do not always lead to good outcomes.