We do see the roots of "B" in your logo design, while at the same time seeing this as a more "evolved" version of the concept. Given how fast the designs were coming in, the thought of it being stolen outright did not come to mind for anyone on the dev team. It was simply seen as an completed thought on the concept of connecting people together. The colors are dismissed in our decision process since the logos would be converted to 1 color, white or blue, in practical application. Keep in mind that even the winning design might be edited/modified by the dev team before it is officially adopted as the logo.

Perhaps, a note by @manuelcruz giving credit for the base idea to you would have went a long way to making this a cooperate effort, which is what we always want these initiatives to be.

You will definitely be rewarded equally for you efforts in starting the design down its origin path.