I didn't mind Lex going for another real-estate scam... it's the way he was in the previous Superman films, so I saw no reason to change it. He doesn't have a grudge with society, just with Supes, and we saw him act on that.
I thought his plan made perfect sense, but he didn't explain how he would defend himself from the other countries of the world very well. However, at the end of his speech to Lois, didn't he say something about "if they try to stop me...", and then he showed a map where every continent is beneath a "new krypton"? I'm trying to remember, but I definitely remember something along those lines and I definitely remember seeing the world map like that.
I thought his plan made perfect sense, but he didn't explain how he would defend himself from the other countries of the world very well. However, at the end of his speech to Lois, didn't he say something about "if they try to stop me...", and then he showed a map where every continent is beneath a "new krypton"? I'm trying to remember, but I definitely remember something along those lines and I definitely remember seeing the world map like that.