Have you ever noticed other people copying your behavior and been surprised by it? Sure, little kids do it, but adults copy too and it makes me very aware of my responsibility as a human being to behave in a way which others can emulate. When I was dating, I dated a man I did not really ever see myself marrying. I was settling. To my regret, my dear friend copied me. She said if maria can do it, I can do it. But she ended up marrying the guy. 23 years and two children later she has two beautiful children whom she loves and a husband whom she despises. I learned a really hard way about my responsibility to live my life as a good example to others.
So how have your actions affected the actions of others?

While it is wise to be a good example, I would not say that you are exactly responsible of your friend's fate. Besides, I cannot see in your text what you could have done otherwise to be a better example.

My problem is rather the opposite: nobody follows my example in the things where I actually would like them to do so.

Even if people were actually following my example, it would be hard to predict what kind of application they would find for it and what surprising side effects it would have.

I recently had a young lady come to my house and ask for advice about her relationship because she reflected on the positive of mine. I couldn't impose any ideas on how her relationship on what she 'should do' because that would lead blame to me advising instead of listening. All I could do was reflect back on my own rocky road from a previous relationship and the things that I learned from it, in hopes that when she left my house she'd have enough confidence to come to her own answer for what her next step would be. Despite the fact of trying to be low key and keep to myself, people are most definitely watching in the shadows.

It would have been a real treat if that have happened to me but may be i am from a different league