Yes, they are efficient and well run but they also can suppress threatening innovation. At some point big companies can buy out any potential competition. You c

Yes, they are efficient and well run but they also can suppress threatening innovation. At some point big companies can buy out any potential competition. You can see that in tech where a lot of startups don't even try to run a profitable business but plan on getting bought out. Same in medical tech where startups just do basic research that's sold to the big guys.