And? The world and our experiences are incomplete; this will never be addressed. Non-optimal performance is both normal and expected.
This advice, like all before and after, is not some atomic function to keep mindlessly smashing.
It works well enough; I was born dirt poor and now struggle to have free time to enjoy my pile of gold. Despite doing zero self-promotion through my career, I'm exceedingly well-known. The work and others spoke for me. Too much, I'd say.
Have an environment where you need to regularly over-extend yourself? Find a new one, you're clearly desirable. Layoffs/life happens, whatever.
There are plenty of downsides from subscribing to the rat race, some upside too. Debasing nonetheless. Guess who has to control that ratio. You. Others will take everything being offered... and then some more.
If anything, I'm championing discretion. Filtering is important! Truly no judgement to those who choose to be more involved, just speaking on my experience. YMMV of course.
Stolen quotes to close: "it sucks to suck" or "that's life". Promotion is like terrorism, only have to be lucky once.
Thank you for coming to my crash TEDhn talk on Game Theory :)