It's about the money, Lebowski.
I should know, I had a monetized youtube channel that I raked in thousands of views with and earned next to nothing the whole time I was there.
In a little over 2 years of actively posting videos from 2011-2013, I earned about $36 for the 72,898 views I generated.
Here's a little sampling of those videos and what they earned. These are some of my most viewed videos, they all have 1500+ views, and the highest earner of the bunch hauled in a meager $3.32.
I spent some time on steemit curating, and posting a few blogs and comments.
...and I've already made more than the total I made in my youtube career in a single post, multiple times. I can't say it for certain, but I'm fairly confident I haven't attracted anywhere near the 72,898 views I accrued on youtube here on steemit. That means that my payout per view has been astronomically higher on steemit than it was on youtube.