Those data points, once stolen, (& yes corporations steal them all the time, so do govts) can be reproduced at will....
If you think this sounds far-fetched, time to look into #Aadhaar just as one horrific real world example of mass misuse of biological information captured under the guise of civic functions.
Gifting them our fingerprints too, under the false premise of iPhone 'security'? Stupid.