Many types of work bias toward people who are just fine with locking themselves in a room/the library stacks/a lab for a week to work through some problem. It's a completely different mindset from someone who likes doing sales or PR work.
It's not that there aren't people who can do a good job with both. But some things certainly come more naturally to some people than they do to others.
I recently learned guitar for the first time using one of those Guitar Hero games but you play with a real electric guitar. Two friends commented how if I haven't gotten to learning it after multiple attempts, gamification won't work. But it did. This isn't the first time gamification has worked on me. For whatever reason, gamification [and accountability] work[s] great for me.
If you ever want to chat or network, my email is in my profile, hit me up!
From my personal experience, exactly such courses have proven to have the most long-term value to me.