Working hard for something we don't care about is called stress; working hard for somthing we love is called passion.
Most organizations only focus on WHAT they do and HOW they do it - tactics and strategies - and they aren't even aware that this thing called the WHY exists. Focusing on only two pieces of a three piece puzzle leaves an organization, or a career, inherently out of balance. Being out of balance, only operating on two of the three pieces, shows up in different ways - increased stress, loss of passion, obsession with what your competition is doing, being forced to play the price game, trouble differentiating. These are all signs that the WHY is missing.
You [should] persist even though there are some short-term stresses and even though there is some uncertainty, because it's the right thing to do.
Stress and anxiety at work have less to do with the work we do and more to do with weak management and leadership.
We live in times of high stress. Messages that are simple, messages that are inspiring, messages that are life-affirming, are a welcome break from our real lives.
We pursue exercise even though empirically we see no benefit from the energy we're spending and we're hurting. So empirically we should quit. The why is exactly the same thing. You persist even though there are some short-term stresses and even though there is some uncertainty.