A) They either develop or have the ability to get info (or manufacture it) on *anyone*
B) They create a gigantic parasitic industry, taxpayer funded "$ecurity industrial complex" (SIC) and crony capitalism makes BANK.
Don't underestimate "B" - it doesn't have to "work" at all to make a ton of money.
Likely it will be a combination of "selective "A" where info can be collected / used against political enemies and "B" for the big dollar win. Actual benefits for the average citizen will be zip.