Yes, it is true. Don’t expect life to be fair always.
Suppose you are a good person and you do all good stuff, always nice to all, do your work best etc., it does not mean that you will get all fair in life. Life has its own rule and works on a complicate algorithm and it is not same to everyone. You may think you deserve it, but it does not mean that you get it. We can see this unfair everywhere, whether it is in promotion in office, award function, recognization etc.
Everything in this world is impermanent and subject to change. So don’t panic. Instead, move ahead with more power. If you stop you are gone if you move forward you will get it and your day will come when you will be appreciated and honoured.
Learned to live with unfairness.