So I couldn’t find a nice solid list of atrocious thing that Thomas Edison did, but I found a lot of partial things, and here are the links.
Would be monopolist:
http://hermitjim.blogspot.com/2012/06/evil-thomas-edison.html
Executing kittens:
Stealing credit for inventions:
http://www.cracked.com/article_16072_5-famous-inventors-who-stole-their-big-idea.html
All sorts of other atrocious crap:
http://www.lateralscience.co.uk/edison/index.html
http://theoatmeal.com/comics/tesla
And finally, wasting electricity in gargantuan amounts all the way to the present day.
https://plus.google.com/u/0/115056313943520401920/posts/H4NSNV6K6ah?cfem=1