If you are editing the color, contrast, sharpness, etc in jpeg, you are making thw IQ of your images deteriorate. With raw, they can get better.
I use lightroom. I adjust a typical image as to color, contrast, NR, sharpening, and set lightroom to always make those adjustments for that camera model at that ISO setting. That gives me a starting point, and its done as images are imported,so it takes no more work from me.
Since lightroom does not change the original file, I can always undo it and apply different adjustments now or 10 years in the future when some improved lightroom can do a better job. With jpeg from the camera, your images are cooked and it can't be undone. Any further adjustments merely tends to decrease the IQ of the image.
However, there are valid reasons to use jpeg too. If you need to send a image straight to a editor to post on the news where time is mooney, thats the best way. If you are taking a snapshot to post a item on craigslist or ebay, it will be 1000 times better than most, even if its jpeg.
I use the jpeg or raw mode based on what I intend to do with the image. Most of the time, I use raw.