Right. If the operators of this service are slick about it, they'll copy the model of a lot of attorneys who sell access to city hall/DA's office/regulatory boards/etc. You don't frame it as getting the employer to do something outside the scope of their job any more than an advocate is telling the city council to grant a permit that shouldn't be granted. They're just "drawing the employee's attention to some important facts", as two friends might over dinner, and the employee can apply the usual rules.

The direct compensation to the employee does look a little bad, but then this isn't bribery if the employee is just doing their job. It has the appearance of impropriety but maybe not the legal force of a bribery charge, tortious interference, or similar.