What does the Show Employer Name setting do?

This is a setting because we had to cater for poor data management in back office applications. Essentially, where an employer is held against a person's earnings we will use this to make the form contextual. I.e.

Do you still work at Tesco?

If this is set to false because the back office:

1. Does not have employer set for most cases

2. Has issues because of historic conversions

Then it is best to set it to false. This in turn changes the question to:

Do you still work for your current employer?