Not quite. Those so called patent trolls are the thorn in the side of the large corporations. Even after a small entity succeeds in obtaining a patent and has their innovation copied by a large corporation and opens a dialogue with the large corporation, he/she is shunned and told to get lost. One large corporation (Apple) is at least honest about it and tells the small entity we can't take you seriously until you initiate a patent infringement suit [1]. The reason is rather simple: it is their most cost effective way of weeding out those they do need to worry about from those they can ignore.

[1] http://www.ipwatchdog.com/2013/05/01/is-patent-litigation-re...