Partial answer. I think you are:

>! Stars, or star constellations. Possibly planets and moons too?

We are like sinful dwarves, or wonders that glisten.

>! Stars are distant suns. Some are "dwarf" suns, and they do "glisten" in the night.

One of us is there to listen.  
One of us is there to cook.  

>! Our own sun, which gives us heat (and can "cook" you if you're not careful)

Another, at night, is there to look.  

>! The moon? It is pretty to look at, but some people say the "man in the moon" looks back.

One is the leader to show the way.
>! The north star, or the pole star shows the way north.

One does what is done by day.  
One is there to look into life.  
Another carefully cuts like a knife.  

>! These describe specific stars.... I'm working on it!