While this doesn't negate the neatness of people commenting about your appearance or specific attire (I will never not wear briefs in this game :D ), do note that high appearance helps considerably with the 'tease' action in game. So you cause a lot more lust when you tease with high appearance than with low - so there is a big reward for it as is, haha.
Realistically I shouldn't bother as much with strength as I do since I tease everything anyway, I just like my MC being very strong. :P