Best Of

To my mind, self-esteem derived from comparison with others is of a lower level, is weaker, and fleeting. Not to be highly reccomended. But also not the only option.
The higher, more powerful, and more stable version is comparing oneself to oneself in the past (results based) or seeing whether we're consistently implementing whatever process we believe it is best for us to implement (process based).
During a long phase of intense running a couple of years ago, I vividly remember the following:
At the beginning, whenever I would overtake someone I would think: 'What a sucker, look at me go!' Whenever I would be overtaken, I would think: 'Woe is me, I suck!'. This was the comparing self-esteem.
I kept noticing and noticing such thoughts in a neutral manner and knew they were banal and of a low level.
As a result of the noticing, over time, this type of thinking totally went away. I realized I was 'racing' only against myself. That it was about the effort, process, and consistency, not the running tempo.
As a result, I came to see all runners the same, as having the same worth, as being part of the same tribe. As long as they were putting in the same effort at the track, the 200kg 'fatso' huffing and puffing while briskly walking and the ultra-marathoner were the same to me. Different speeds and histories, yes. But now that they were putting in the same effort, same in terms of value and respect.
To this day, I cheer on all runners in my mind, and am sometimes even a bit nuts and cheer them on out loud! 😃
Since I previously did a lot of smoking and drinking, very little sport, and was fat and unhealthy, the sporting progress gave me lots of positive self-esteem, with very little or no negative side effects.
Like with other things, maybe it's about the 'level' of the thing we're deriving our self esteem from. It can go from the very gross and banal, all the way to the very subtle and noble.

A good TED Talk' well done. It talks of Self-Esteem as a comparative to Compassion.
Just a thought:
As defined above, Compassion for self extends to compassion for others while self esteem is comparative to others and is thus unrelated to compassion.
On the other hand, self-esteem derived from compassion for self which thus enables and triggers compassion for others presents self esteem as a component of compassion for self. In that mode, self esteem becomes a non-comparative platform from which to extend compassion to and for others.
In this manner, viewing self esteem as separate from, and not a derivative eliminated their inter-connectivity. But, when self esteem, not dependent upon comparing one's worth to others, is seen as a derivative of compassion, it enables compassion to algorithmically enhance the positive impact of the thoughts and actions derived from of compassion.

Peace to all