In regard to TOR and wallets. Could you please explain how are wallets helping TOR network?
I presume wallet needs to be open all the time to help TOR. I just want to know in what scope does it help, I would gladly have it open all the time if it helps people to be free and anonymous

Take a look
We increase the number of communications going through the Tor NetworkSo every one become more anonymous. source:
https://en.wikipedia.org/wiki/Tor_(anonymity_network)
And you do not become a
Tor exit node unless you set up so. It is natively integrated with the TOR network and always starts with TOR network.
You are helping humanity to be free one day and free from slave masters!