Revised Research Question

How can reliance on inspiration rather than diligence affect quality of work?

Mindtools.com explains the psychology mental process referred to as "Locus of Control", in which, individually, we categorize our varying change of situation and circumstance to either within our control, or out of our hands. For example, our behavior as well as how we perceive incoming information can drastically alter the outcome of social conclusions. To further illustrate, weather or not we believe that outcome was destined to be, therefore concluding we had little to do with it, or rather self blame, this is the defining difference between External Locus of Control and Internal Locus of Control. Individually we are prone to perceive ourselves through either one or the other most of the time, however, much of this perception can run the gamut between the two based on various other inter-sectional aspects of our personality.

I once heard a quote that paraphrases to, "We judge ourselves based on our intentions while we judge others based on their action." Googling this now, I can attribute this source to author Stephen M.R. Covey. This of course begs a theory that we may forgive ourselves much easier than that of others unto us.

Now some introspection,

When considering a painters motivation to paint, said painter might perceive themselves too externally busy to paint, or possibly, too exhausted by the time they are off the clock (if also employed) to be able to paint anything they would be proud of. They may attribute this to matters out of their control, and one can see why. We like to think we need sleep, and we do, thus prioritizing it above most all else and so we reward our exhaustion with it - however this is still a personal choice to reward ourselves at all, lack of brain function aside (semi joking?) Likewise, we like to think we maintain our needs by keeping busy (perhaps through employment, making rent each month, school, or balancing a social life) however this is of course is subscribing to a capitalist social system that requires us, essentially,  to pay to live on this earth. It is a perpetuating cycle of Americanized standardism - wake yourself up early to make it to your job to pay your rent so you can go home to the shelter under which to sleep to wake up early to make it to your job to pay your rent so you can go home, and so on. 
To what degree is this perpetuation within our control? I say more than we might think.

Working within this social structure similarly, we may have more control than we'd like to take responsibility for. These examples are extremes, yet somehow i think transending this economic structure, while not attainable for everyone, is still possible. (Think, Monk lifestyle, Anarcho Collectives, Woodland Socialist Communities, etc) So, if we can harness and (within localized rational) some-what surpass even such extreme social barriers if we really wanted to, why do we allow ourselves to blame the frivolous affectations of others towards our own love of our craft? What is working yourself too hard and spread too thin to not feel like practicing what you love? Maybe one might consider embarking down these lifestyle changes in order to have a balance of actually living a life you love to live.