one big company really has never shown to be better then smaller companies except for in speed of product to market. And for big companies to rule absolutely it usually requires some previous legal corruption that creates a monopoly. So basically China would have to be the world government in order to get that foot hold. Second regulation is an illusion , its a combinaiton of people doing their job and people playing nice. These dont always occur together and when  the both dont occur you have deregulation or corruption. Also if there was to be one super company weather china or us or anyone it would be too big to regulate all the smallest parts so in effect corruption would occur within and against the huge company. Basically its impossible to control everyone. Read 'Multitude' its a social fact , kind of.