Every organisation I've worked in has had comprehensive processes for deleting personal data and only storing what is necessary due to e.g. https://www.gov.uk/data-protection
Without such laws, every business would store as much data as they could indefinitely, because $$.
All of this is besides the point that was made; your fatalistic view point suggests we should make no attempt at effective governance because there are powers that oppose us. There are countries which are more democratic than others, and the population of such countries tend to have a better quality of life and more rights.
Your view point sounds like we should give up on any form of legislation the rich and powerful would not like.