Another trait chronic litterers appear to have is a penchant for not wanting to be inconvenienced — things must be done NOW, even if the something done results in reckless or substandard quality, or harm, even death, to innocents.
Personal freedom is yet another quality - the ability to do literally anything without any retribution or suffering negative consequences.
Furthermore, a person's poor mental health that shows "resignation and despair", coupled with limited to non-existent childhood home training, play roles that make for those severely lacking little to no personal control, to stop engaging in this societal, and illegal, activity, that breeds disease and injures, even killing, animals and landscapes.