I think that whether informative songs with social and political themes will be viewed as tedious and complaining depends on how subtle the lyrics are...and on the listener, of course.
The impression I get is that
most people like music primarily because of its sound and the emotional states it puts them in, and they don't listen to music to be informed. I think they feel informative lyrics are dry or preachy and they don't want music telling them what to think or do. One person on MusicBanter mentioned to me once that if he wanted to learn about a topic, he'd read a pamphlet rather than listen to a song.
However, if the message of corporate greed or lies etc. is subtle and is embedded in captivating music, then people may listen. The sound of the song may draw them in and then cause them to think about the content, which, if substantive, may make them appreciate the song more.
Wysh, since you like and create lyrics with heavy social and political themes, you may like this thread:
http://www.musicbanter.com/general-m...tml#post907260