Time for a thought experiment! Imagine there are 2 monkeys. One monkey genuinely believes it is a unique and special being. The other monkey is genuinely egoless, believes all monkeys are just a coincidental blob of matter with no fundamental claim to being special and that in some sense are all part of the same being. There is enough food for 1 monkey. If that is all the information we're getting, I would contend that the egotistical monkey is far more likely to be the one to eat the food.
You might easily be you because if you weren't it'd be an evolutionary dead end. Everything with the ability to make choices ahs to believe at some level that it has more of a right to exist than the systems they consume energy more.