Lili, its worse than that. Epigenetics is a thing, and just because you have 20,000x more of a chance to have anything (heart disease, any cancer, Alzheimer’s, etc), your employer has no idea what lifestyle changes you may have made since childhood to prevent it.
No one should LOOK at someone else’s genetics (other than their doctor if asked). Too many false decisions could be made.
You are correct but some genetic traits are so prominent it doesn’t even matter what lifestyle choices you make,you are genetically predisposed to any number of diseases and in fact have those diseases, such as cardiovascular disease.