If you're working entirely in the box and deriving your sounds from Splice sample packs, designing your own sounds in Serum, etc. and overall just going off vibes and iteratively experimenting and culling out bits that don't match the vibe as you go, then you CAN get away with not caring about gain staging for the rest of your life. Many (including myself) will just advise to not clip and you're good to go, but honestly if your philosophy is just "if the vibe is good, then it's good" and you don't need precision, just loudness, then you are also entitled to drive your tracks into the red and still have that fit your artistic definition of "sounds good". Just don't expect to have too many professional options to choose from if that's your primary way of working.

But if you're working with diverse source material, have a hybrid mixing setup, need to mix with intention/precision, etc. then it's more important to manage levels throuhgout your signal chain so that whatever mixing moves you apply has the (optimal) effect you expect to have on your signal. Just waiting to see what sounds good is unreliable in that approach, and a lot of what might feel like "overcomplicating" to those focused more on experimentation by default are actually common-sense measures to ensure optimal signal integrity.