I think this is awful. My DS is 16 months not 6 weeks, and I still wouldn't leave him to cry beyond waiting a couple of mins to see if he is just settling back or waking up properly.
Children who are responded to in a generally sensitive and responsive way do not feel their extreme helplessness in the world, in fact they feel like they have a good deal of agency over it. This makes them confident about enjoying and exploring the world, and they don't have to waste any developmental energy dealing with anxiety.
Children who are ignored get very anxious about why their attempts to engage are not working. They feel their helplessness in the world and become depressed, knowing that attention and responsiveness is conditional on it fitting in with the parent rather than vice versa.
So far from me being boss, my DS is boss, for the moment. He is in theory helpless, but actually everything gets put on hold to respond to him. This is because he needs it, at this age.
The real trick with parenting is to gradually shift the balance as the baby grows into toddler then preschooler, so that you become much more of the boss and the child is expected to fit in much more. When my DS has language, and a more mature concept of space and time, then we will start asking more of him.
We brought up my oldest, DD, in the same way, and I am convinced it was the right way. She is such a confident lovely kind hearted kid, even if I say so myself.