A general observation:
The world is, by and large, what you make of it. While physical laws cannot be broken, humanity is what you believe it to be. Your beliefs about others shape your perceptions, determine who you will become, and influence the development of those around you. They will also subtly guide who you associate with, and the sort of people who choose to associate with you.
Thus if you believe that people are basically good and charitable, marred by the occasional evil impulse, it will be born out by your life experience. Conversely, if you believe that human beings are essentially selfish, short-sighted, dishonest and lacking in compassion, then that is what you will find to be the case. Being well-acquainted with the harsh realities of life, you will see through every ostensibly good or indifferent action to the selfish motive that must lie behind. Memories of people at their worst moments will stick in your mind, while all others fade. Burned by your constant cynicism, more sensitive people will distance themselves from you – confirming, to you, their insincerity. You will feel most comfortable with people who share – and confirm – your jaded outlook. In their coldness, selfishness, and lack of trust they will live down to your expectations, and will therefore seem more “real” to you, less phony. The news, dominated as it is by gore and evil deeds, will constantly reassure you that the world is consistent with your view of it. Everyone you meet will reflect your harsh outlook back to you.
I have also observed that which of these worldviews someone adopts is often dependent on how they view themselves.
Heaven or hell, you choose the world you live in. You can be surrounded by flawed angels or by demons. But remember, your choice is not made in a vaccuum. To make the world a better place it is not enough to be one of the embattled few who choose to rise above their own depraved nature. Your actions reflect your attitudes in subtle ways, vectors for the spread of either charity or contempt.
And that is why so many religions put emphasis on loving your neighbor.
If I speak in the tongues of men and of angels, but have not love, I am only a resounding gong or a clanging cymbal. You can do great works, and hold yourself to a high standard of behaviour; but if you view yourself as the exception, and see those around through a haze of disgust, you still feed the vicious cycle of hatred and violence. Like quantum particles, your observation of those around you effects them. Only by consciously choosing a charitable outlook – no matter how foolish and naive it may seem – can you make a positive change in the world.