I think the best way to really know who is truely selfless is by looking at who is there for you when you ask for help.
You WILL find some JWs that are selfless but most will not even bother with you. JWs are conditioned to judge and condemn. It's sad. I have seen it and experienced it.
The times they may actually show up is if they announce on the platform that someone needs help and have someone arrange to offer help.
I have many, many stories to tell about this but I will just mention one. An elder got very sick and was on bedrest for about 6 months. This elder I must say is a pretty decent human. Everybody loves him and his wife. But when he was sick and couldn't move, no-one called nor passed by to see how he was doing.
I was starting to fade but I knew about this. I was very pregnant and couldn't do much for them (just food and take out trash) but I got PISSED when I found out that NO-ONE else was calling or visiting. Oooh! I grabbed my phone and called the elders and was a bit harsh but I told them that they needed to give him attention! I also firmly suggested that they make arrangemebts to help this elderly couple.
Next meeting, they DIDN'T! So I took matters in my own hands and spoke to the pioneers and asked them to please pass by and help this elder and his wife. Finally they made arrangements. Geesh!
This really made me mad. I still get mad when I think about it. But it shows how the JWs just don't have focus on what it means to help your neighbor, and look for opportunities to show true Christian love. The focus is on making your hours, and meetings.