Why do sv_save_worse_scores and sv_map_vote have the CFGFLAG_GAME?

[timakro]

I wonder why the settings
sv_save_worse_scores - Whether to save worse scores when you already have a better one
and
sv_map_vote - Whether to allow /map
have the CFGFLAG_GAME (are map settings) which means they can be changed by the commands in a map.

I know that sv_save_worse_scores 0 is used by the flappy bird map but I think this shouldn't be the decision of the mapper and therefore better set in the .map.cfg file.
I have no idea why sv_map_vote is a map setting, a map shouldn't be able to turn /map off in my understanding.