I don’t buy into the notion of ‘nice guys finish last’.
It’s true that if you don’t ask for what you are worth, you may never get it.
But if you never prove what you are worth, or, if you falter to continually add more and more value, then, you will not make yourself indispensable.
Be indispensable. Be the one. Be the only possible option. Be the best woman for the job.
There is no last or first. There is only giving your best.