The caps, tire covers, jerseys, t-shirts, etc are licensed by NFL Properties, which grants (for a fee) manufacturers permission to use member clubs' logos and insignia -Look for the sticker with the holographic NFL shield on your copy of Madden, or your Bills hat for example.
The revenue generated from NFL Properties ends up in the revenue-sharing stream, and is divided equally by all 32 clubs. So the short answer is no, all of our puchases of all that Bills stuff doesn't doesn't directly impact/benefit the Bills.
But cheer up. You know that new authentic Bills jersey you just bought? It paid for TO's spinner rims!