There are many problems that cannot be solved by the resources available to a medium sized company. Which is why you need multiple governments to get together to help out something like AirBus or space programs.
Similarly Google at its scale can tackle large problems more efficiently than having 10000 medium sized companies pool their resources together to do the same.
In other words, everything has pros and cons that depend on each particular situation. Large companies aren't "all bad" and small companies aren't "all good", you just chose to give lower priority (or ignore) ti the bad aspects of small companies while showing concern with the bad aspects of large companies.
That's a theory without data to back it up. Especially in technology, where big innovation usually comes from small to medium sized companies. What smaller companies cannot do is coerce the market to extract profits at the level done by Google and their pears. That's why we need anti-trust legislation.
Similarly Google at its scale can tackle large problems more efficiently than having 10000 medium sized companies pool their resources together to do the same.
In other words, everything has pros and cons that depend on each particular situation. Large companies aren't "all bad" and small companies aren't "all good", you just chose to give lower priority (or ignore) ti the bad aspects of small companies while showing concern with the bad aspects of large companies.