Thinking that you ought to have something without considering whether you deserve it, is a very toxic mindset, Rashta.
This is why she's also getting manipulated left and right, whether it be by people being nice to her (like the Duke), or by people threatening her (like the grandfather of her first son).
In the first case she naively believes he's nice because he should be nice to her, since she deserves it.
In the second, she believes it's because he's evil, so of course that's what he'd do and she is the victim.
And while she was indeed a victim, she's twisting it by milking it for sympathy and feeling self-righteous towards both people who give it to her and people who refuse it.
In her mind, she's blameless, and the world is set on making her suffer, so she needs power.