As stated earlier, polish is unnecessary for CXL leather. It is not "bad" for leather in general, but is really only needed on calf,CXL and shell don't need it. There are other products specifiaccly for protecting these leathers.
Plain toe blucher in shell cordovan (color numbe 8), longwing blucher (also shell #8) or chocolate suede chucka on flex sole for the versatility you are looking for. Or if going a bit more casual (jeans and khakis) the Indy boot.