I don't think they are servants. They are employees. or self employed. whichever.
Servant is not about someone employed to do a job for you, it is more a description of the relationship between you, imo. Back in the old days when the big houses employed the young girls and made them wear uniforms and curtsey and use the back staircase, these people had servants. The servants were considered lesser human beings, forced to show 'respect', sometimes hit...
Now you may employ a cleaner, but they'll call you by your first name, you may have coffee and a natter and it is much more a relationship of equals. They aren't servants.