wishful thinking?

So in my devotions lately I am reading the letters from Paul to the Romans. And throughout these I hear a lot of talk about righteousness. And I keep thinking about what the true deffinition is:

Righteousness: Morally upright; without guilt or sin

And as he talks about this he also mentions about how the law is not always needed. Not necessarily that we shouldn't have laws but starts to define the point where law ends and righteousness begins. This idea of righteousness is actually really cool. It, in my opinion and translation, is a little like saying, " You have a clear idea of what right and wrong is and you choose the right one, so you don't necessarily NEED to have laws." This idea of being morally upright and knowing what you should do and actually doing it. It says that this righteousness is a righteousness of faith. By believing that because you spend daily time with God and are in him as he is in you, that you can have a fairly clear idea of how to live your life. As great as laws are for you for structure and good living, they many times end up in arguing, loopholes, and bogus court cases. Paul talks as though he were wishful thinking but in reality could be done. Think about if the whole world had this righteousness and worked on it really hard. You wouldn't even need laws technically because then everyone would consider it common knowledge. Like how it's not a law to breathe everyday but we all still do it. It's like common sense. But rather a common sense of what you should do and then doing it. But let me clear one thing up; this is not a blog to say that rules are not needed and we should fight the system or anything even remotely around those lines. This is to introduce the idea of righteousness and realize that if we reach this level we won't have to worry so much about staying in between the lines, but rather spend our time loving and helping bring people to the amazing love of christ.