But your voting power is only one, and it is the one related to the hive blockchain, no matter which viewer (leo, ecency, peakd, hive.blog, etc.) you are using to see that information.
Thinking a bit, perhaps the option is to have the possibility to "make invisible" the voting power of a user. It would be necessary to think about the advantages and disadvantages of that option.
But as far as I know, it is not possible to hide that information at this time.