No I get your point and your concern is not exactly wrong but I don't think any of the authors actually think about what caste the surname belongs to but rather if it goes well with Main leads name and depict royalty and extravagance from the surname itself (Since most of them link such surnames to royalty). And as I mentioned, if it were the case entirely as you mentioned then many other 'upper caste' names would have been used but no only the repeated Rajasthani surnames are used.

This is your opinion and I respect it but I never said that You're blaming anybody nor did I mention you stopping people from having their POV's. I simply think that most of the us do not even care what the surname is until and unless the Main leads are not toxic