She isn't a snob.  She usually does what the others ask her to do.  
There is only one occasion where she was visibly shocked at someone's
behaviour, and that was when Rumpleteaser sneezed at Skimbleshanks.
Also, she is not always up the front, and when she is, she's only there
as a focus point for us humans.  There is no way that Victoria is a 
mean cat, she didn't want to fight Macavity, but Jemima did.

Victoria is a white cat because she was made that way. Victoria is a 
white cat because she is. And to round it all off, Jemima is just as 
innocent as her, yet is browny-black.

She and Mistoffelees are NOT brother and sister.  Mistoffelees is a 
runt (Look at his size!) And runts are usually the youngest in a 
litter, however, He is older than Victoria. Alonzo is not related to 
either.

She and Misto have a pretty full time girlfriend and boyfriend 
relationship. They are seen together almost more than Coricopat and 
Tamtomile! Just after Victoria has forgiven Grizabella, she leads 
her over to Mistoffelelees as if to say, "I'd like you to meet my 
fiance."

- Penny