There are two stories here. First is the headliner: another villain wants to take over the world. The downfall of the film occurs when his actual plan is revealed. A natural reaction could be to roll your eyes at the stupidity of it all. But, no one said villains have to use wisdom with the amass of knowledge they boast to possess.
The real story in about control. The type of control put in place for the members of the Justice League by one of their own is sheer genius and unexpected. Still, when it comes to Batman, one should expect everything, especially well-devised contingency plans. For a guy with no superpowers, he can take down the entire squad if necessary. Now, if only someone could create a contingency plan for him, just in case he crosses the line. -ecj