So now you're telling me the purpose of the software doesn't matter. LOL, again.
Well, that's too generic of a statement for me to really want to get too far into, but no, the purpose of the software doesn't matter in regards to the question of whether or not the data traffic is in the public domain in the first place.
Either sniffers have a right to view your (and everyone else's) coincidental data packets while they are diagnosing technical problems AND other software on other machines have a similar right to examine data packets OR only the intended reciever of the data has the right to read packets (which would shut down the Internet because reading packets is REQUIRED for routing and technical diagnostics).