The aggregate data is often more useful in commercial use cases, but plenty of use cases need the indivual data as well.
Private investigators, three letter agencies, and any company wanting to send mailers to my new address when I move all need the individual data to target me specifically.
I totally agree the aggregate data is given more value in a commercial market heavily focused on advertising and now training LLMs, my only point was that there are markets that highly value individual data as well.