Poverty and evil are not direct. Being poorer does not make you more cruel. Although abuse in any of its forms is repugnant and despicable, when it is committed against animals or children it is worse, because they are defenseless creatures.
In general, people who are cruel to animals are even more cruel to other people or they may be very cowardly and abuse those who are less strong.
A phrase attributed to Victor Hugo is that "the miserable seek out other more miserable people to feel happy" , it is not from Lucy, the protagonist of Elfen Lied.
The worst thing is not that there are tons of cruelty, the worst thing is that the networks are full of these acts and EVEN WORSE IS THAT MANY TIMES THEY HAVE MORE VIEWS THAN ACTS OF KINDNESS. Humanity is becoming denaturalized