ssl: why wrap newly accept()ed connections?

[Grant Edwards]

According to the docs, when you accept() an ssl connection,
you need to wrap the new connection:

 https://docs.python.org/3/library/ssl.html?highlight=ssl#ssl-sockets

   When a client connects, you’ll call accept() on the socket to get
   the new socket from the other end, and use the context’s
   SSLContext.wrap_socket() method to create a server-side SSL socket
   for the connection:

    while True:
        newsocket, fromaddr = bindsocket.accept()
        connstream = context.wrap_socket(newsocket, server_side=True)
        try:
            deal_with_client(connstream)
        finally:
            connstream.shutdown(socket.SHUT_RDWR)
            connstream.close()
           
However, example server code I've found does not wrap the newly
accepted connection. I've checked, and newsocket is already an
<ssl:SSLSocket> object.  The examples I've seen/tried simply call
..recv() and .send() methods of newsocket, and that seems to work fine.

What is the purpose of wrapping newsocket?