It is my understanding that it is the opposite. People on the right tend to score lower on scales for curiousness or cognitive integration (ie the opposite of compartmentalized thinking, where you can have opinions that make sense to you but are blatantly hypocritical to observers) while moderate liberals score the highest.
I haven’t met any sophisticated thinkers on the right who I felt did a good job of encapsulating what the left stands for. All they generally offer is strawmen arguments of the left.
What the left generally stands for, if defined by one word, is egalitarianism. Leftists generally want a society as inclusive and fair as possible to as many groups as possible (this extends to non-human groups like animals or the environment). The right generally wants a more hierarchical society where certain groups are above other groups, and where only people high on the hierarchy have access to the benefits available within the political, social, legal economic, etc. system. Leftists generally oppose giving too much power to one group (like corporations) and feel you need the state to step in to protect and promote egalitarianism as well as protect the well being of the weak and downtrodden.
It isn’t a coincidence that most of what the left has done in the last 100 years is been in pursuit of egalitarianism, protecting the weak and vulnerable, and expanding who ‘counts’ to the social, legal, economic and political system. Ending slavery, ending jim crow, giving women the right to vote, making human rights part of foreign policy, non-polluting energy, laws against abuse by police and corrections officers, expanding health care, abolishing child labor, etc. etc.
Jonathan Haidt has written some good stuff about this. The further left you are the higher you value care and fairness as moral values, and the less emphasis you place on loyalty, sanctity and authority. The further right you move the lower the first two drop and the higher the last three increase.
http://blogs.scientificamerican.com/guest-blog/files/2011/12/viewer.jpg
However the left that the right usually refers to (well meaning but totally naive college students who want to promote an authoritarian social system where it is illegal to hurt anyone's feelings unless they are a cis white male, in that case have at it) are a small representative of the left and many on the left do not agree with their goals or methods.