True service is a commitment to meet the needs of another, by an means necessary.
When I was training to be a marriage and family therapist, there was no ethical room for sales calls.
Clients came to you. You listened to their presenting problem + offered them a possible solution.
If their condition or circumstances were outside of your area of expertise - you provided them referrals to well respected clinicians you knew and trusted.
The foundation was a comprehensive approach to care -where the person came first.
In fact, there was an unstated ethical obligation to ensure their pressing issue was met.
This is how I approach all my Spark: Illumination Strategy Sessions.