Who defines the "collective interest"? It always boils down to some douchebag in a suit paid for by his owner making that decision. If you take your assumption to its natural conclusion, theft is good and thiefs should always be in charge because (is/aught) it always leads there anyway. 

 Liberal democracy is supposed to be a political answer to that question.  

 Oh boy. The magic "democracy" word again. I'm out. 

 Yes. I'm unapologetically in favor of democracy. Bye, I guess.