Rikkitic:

 

I can't speak for aliens, but research has demonstrated that sexually promiscuous Bonobos are far more socially advanced than their aggressive chimpanzee cousins (and us!). Human beings chain themselves with all kinds of ridiculous restrictions on uninhibited sexual behaviour and they pay the price with sexual frustration, resulting in wars, murder, slavery, economic exploitation, pillaging of natural resources, destruction of the environment, depression and suicide, and every other ill attributed by the superstitious to original sin.

 

  

You use "advanced" in a very anthropo-centric way. Species are all equally "advanced", except they have advanced in different directions. A chimpanzee would perhaps consider themselves more advanced than us because, although we've got weapons and technology and so on, humans haven't been able to develop sufficient aggression. Dolphins no doubt consider themselves more advanced, because humans have only a limited ability to muck about in oceans.

Attributing everything negative to sexual frustration is very Freudian, and Freud is nowadays an outlier in psychological thinking. Children who are too young to experience sexual frustration also exhibit aggression, covetousness, wrath, and a bunch of other deadly sin behaviour, so I don't think it's sexually based. I think susceptibility to these sins is either genetic, or learnt at a very young age. And a fair amount of effort goes into training children not to do what comes naturally.