It's completely OK to have such a rule, your behavior is much more disturbing. It doesn't really matter if you use UK or US english, but you should use one and that must be pressured from above. If project standard is UK you use UK, not what you like.
Quitting because of that is just stupid. In my company CS rules are almost opposite to my preferences (and to common style for that language community of course). I use every opportunity to grumble about it, but it would be much worse if everybody (me included) shaped the code based on personal preferences, not style guide.
Quitting because of that is just stupid. In my company CS rules are almost opposite to my preferences (and to common style for that language community of course). I use every opportunity to grumble about it, but it would be much worse if everybody (me included) shaped the code based on personal preferences, not style guide.