This is the problem when cacs from Missouri try to be more hip hop by using terms like simping.
Nucky, for being a gangster, is a soft dude. His speech to Margaret, that took up 3 or 4 minutes, made sense in the context of his character; he basically does everything by conventional morality and only wrongs people who wrong him, he never really does anything grimy or unjustified. That he would want to save women or have a soft spot for them makes sense; he doesn't really have the morals of a gangster.
The show tries to be more than your fantasy of killing and being a boss for an hour, it does try to capture the time of the 20's a lot. The storyline with Margaret took up about gave a perspective on women and abortion at the time, giving more of a picture of the time period.
This episode delivered some superman shyt, but you'll probably need to watch something like Breaking Bad, where the "everyman" stand-in Walt is cocky and talks shyt to meth dealers who deal in 8 figures. For that type of thing there's a lot of other shows out there.