I misread nothing. My advice to you, especially if you have children, is to research the cause of low self-esteem, narcissism, and the effects on children of having/not having unconditional love. Otherwise there is a strong chance that one of your children will end up like your sister.
I'm happily married and have a beautiful, well-adjusted adult daughter, who chose an awesome boyfriend, aced all her exams, is an accomplished musician and a singer song writer. She's a credit to herself and to the way I raised her with unconditional love.
As a teen she told me that she loved me every day, because she would recognise negative traits in her class mates, that she'd had as a child, but that I had kindly, but repeatedly pointed out, until she stopped. The result is that she is kind, compassionate and has amazing leadership skills, but she does not require constant validation i.e.people to tell her how amazing she is, and agree with everything she says and does.
My advice is freely given, take it or leave it. Keep responding to your sister in the same old way, that doesn't work! And pretend that you are a perfect hero and your sister is useless.
Everyone in the comments agrees with you, so your views must be right, and the one dissenter, well, I know nothing about her, but she must have issues - right?
RE: The Silent Wolf