Cause or effect?

In public opinion the technology industry people are considered as hairy, not-so-clean humans, wearing T-shirts and jeans, who drink coffee for breakfast, eat pizza for lunch, and chips for dinner*. Is it so because such people are attracted by IT industry or because IT industry produces/promotes such people?

In public opinion politicians are considered liars. Is it so because liars are meant to be politicians or because if one becomes a politician he or she has to lie?

The general question is: are you a cause of your character or an effect of your interactions with the society? I think both, but the society can’t deny your character. The effect can’t deny your cause. It will eventually come up.

What do you think about it?

*) I can assure you it is not 100% true. We do not eat chips for dinner…