I may be the most famous singer. It does not necessarily imply that I am the best singer.
I may be more popular among the larger population than other singers. My fans are unlikely to be all music critics. So, my popularity does not always equate to my skills. There are likely to be numerous more skilled singers than me.
We assume that a big brand equals better quality, reliability, or other positive attributes. Bigger does not necessarily mean better!
Bigger may mean that it is an attractive option for a larger population.
So, consider an objective evaluation when choosing a new software, technology, or vendor. If you are not careful, the forces of social proof will push you to make default decisions. As decision-makers, it is our duty to choose excellence over popularity.