The kind of thing that concerns me if you do not take an interest is the possible free rein on your finances if not overseeing them. You may not be able to navigate the handling but I don't think you'd have a problem seeing an unexpected drop in the bottom line. I'm not trying to alarm you, it's just good common sense.
There will be less money coming in each month. Most likely you will lose your SS and only get RR's, the greater of the two, if the rules haven't changed. Whatever pension money RR had coming in may either be gone or reduced depending on what he had set up.