In my opinion, the thing about death is that it makes us think of our own mortality.
I have suffered many losses. My daughter's father was interred just today.
Who is to say what makes a loss personal?
I drive to work and home the same stretch every single day and I was devastated to hear of two young men killed heading in my direction home one evening just 20 minutes after I had passed that very spot. It was big news. Now, I didn't attend the services and I didn't blog anything or post in the newspaper articles, but I still see the blue X on the tree they smashed into. I still see where the ground off the road was torn up not only from the crash, but from the rescue and recovery vehicles.
I didn't know either of them, but I have cried when I pass that spot going to and from work since then. I think about the lives lost in an instant, the families impacted, and the hundreds of cars that go by without even realizing that's where lives ended. I think about how it could have been me or one of my loved ones.
I mourn them every day I drive by and I didn't even know them.
I have attended services for people I haven't seen in years or didn't really know, but I knew their parents or other family members. It's not for "show", it's a way of paying respect for the family.
I think you should try to change your mind about how you are seeing this. If people that didn't "know" this person are this affected by his death in a drunk driving accident, maybe it will make them think twice about driving while intoxicated. Maybe it will make them see how precious life is.
Maybe they need to express a sudden understanding of the fragility of life.
I'm so sorry you lost a friend under such tragic circumstances. I'm sorry for his family.
His family might be comforted by the outpouring of support regardless of how you feel it's intended.
People attend candle light vigils and memorial services for people they didn't personally know all the time.
It's just a sign that someone has affected many lives.
That doesn't have to be interpreted as a bad thing.
Just my opinion and no offense intended.
Best wishes.