[hgsgm]

Data sharing is a great example. Small Biz A can't share data with Small Biz B, but Biz G can share data between Product A and Product B and their thousands of employees.

[RandomLensman]

Large customers tend to limit data sharing - also in large businesses. Retail customers usually don't have that kind of power.

[TeMPOraL]

OTOH, Big G is also a single target should they start abusing that data - as opposed to Small Biz A and Small Biz B, which will just disappear and reopen as Small Biz C and D. Being larger has advantages, but it's not all advantages.