@abhijith Oooh. That is a very good point. It's going to be abused if the majority, or a certain group, already have a powerful influence in the society. And the voting system will only end up being abused, and probably a more powerful way for oppression and discrimination.
That said, I realised, if a person can have more than one number and/or account, then it's also going to be a major problem in such a public voting system.