Did those barbarians actually get it right?

[Rodion Romanovich]

Ah Altruism, you scratch my back and I'll ride on yours. You seem to think as society as a living evolving thing,

Before civilization, society was pretty much fixed, only small changes occured. Nowadays we have a cricular pattern where a society form is created by a generation of humans, that society form then affects the next generation, which based on its experiences makes changes to society and create the next society form.

it's just an social contract bases on the convenience of the day.

Convience is a value assigned to different things by different people. Depending on the experience of those who form society, they will seek convenience in different ways. Some parts of how society looks spring from what is practical, some of it springs from earlier experience and sometimes an overcompensation of previous errors causing new errors. Some of it just springs from somebody's desire to gain power, and sometimes the struggle of some to achieve power leaves traces in the entire society system, because to get power they're prepared to change laws to make it possible. All these phenomenons I'm sure you can admit exist, or? Those are the ones I'm referring to.

Conveniences exist because of inconveniences, that inconvenience being the crime of the day. Getting rid of that isn't animalistic, it's just common sense.

Society isn't based on what is convenient, it's based on political correctness, our perception of reality, our forecasts and attempts at predicting the outcome of different actions, and our emotions and desires, and our definition of what is good for us, but also the struggle for power from individuals who are prepared to let laws change in ways that will allow them to gain enough power. A few examples of irrational decisions made in politics:
1. think things that aren't problems are problems
2. due to instincts and desires prefer certain ways of solving problems over others, even when they aren't the best methods
3. not isolate and define problems well, but instead "solve" things lying around problems, and assign strange goals to ourselves. Goals that were originally a means of achieving a real goal, and not a goal, are often raised to become goals on their own
4. solving a problem by creating several new, possibly even worse, problems
5. overcompensating to counter the problems of the previous generation, often seen as "political correctness"

Society certainly isn't rational, and nobody really controls it. You might think that since human beings created civilization, they would control it. Or you may think that those with the greatest power positions actually determine in which direction society goes. But how much power do they really have, and how much is created out of nondeterministic factors because they made incorrect predictions, incorrect decisions, or just saw a few years ahead and ignored what the results in 100 years would be? Any history book should show that things happening 100 years before a particular incident played no little role in making it happen. It's all about cause and effect, and it turns out the cause that has the greatest impact on what effects come out is how the previous society form looked, and not how individual humans, no matter how powerful, acted.