in my mind we are collectively very naive and oversimplifying our own social cooperation / competition behaviors, to the long-term and systemic detriment of our welfare
I am not at all an expert in this field but even casual awareness of research [1] confirms intuition of very complex patterns: people will punish altruists because, e.g., they are not altruistic enough(!), projecting hidden motives or simply hating their guts (do-gooders)