Could it be also because for most companies after large investment in DS/ML/DL, they couldn't create a promising solution because they don't have as much access

Could it be also because for most companies after large investment in DS/ML/DL, they couldn't create a promising solution because they don't have as much access to the data/hardware/talent as Google/Amazon/MS does? And at the end of the day using just an API from the former gives better ROI? (or) In simple terms, is profitable commercial Deep Learning just for oligarchies?