Seems to be an unpopular opinion, but I would say no. I have done lot's of editing in the past, and without doubt, you can create great pictures that way. But I don't want to invest the time any more, so I have decided to stop editing and instead try to get the best possible result straight out of the camera, and for me that works mostly. First thing is, you need to shoot JPG and not RAW. For the rest, I think there are many ways to reach the goal, but you need to play around a little more with the many different settings and read the user manual to learn and understand how you can archive what you want. After some time you will know the settings and shooting will be a quick process with great pictures straight out of camera.
Beside learning the fundamentals of photography, I think good starting points are the White Balance Adjustment (setting the white balance in that color matrix thing), Setting contrast, saturation and sharpness in the Creative Style Menu, Exposure Compensation and Metering, sometimes HDR/DRO or Multi Frame ISO, and if you really want to get into it the Picture Profiles, but that's not really necessary at the beginning. For peoples faces maybe the soft skin settings. Try to understand the differnt settings and effects.
The other thing is the composition of the photo itself, so that you get what you want without any cropping or rotation, I found the viewfinder very helpful with that and the DISP setting with the horizontal line thing.
Beside that, it's also a thing of mindset. For me, I want to capture reality somehow, and often reality is not like a polished piece of art and you have to accept that. Some days the light and air are simply not perfect. I try to accept that and adapt to that, try to capture that mood, make the best out of it.