While I understand the reasoning I think you're going to invest too much in the long term. Those accounts need to be maintained and have to create content themselves. If you spend the time that you would spend on multiple accounts on a single account I think you will get more engagement after a reasonable time.

I'm not an expert at all but I try to not think too much about the whole follower/return of investment thing and just want to engage with people and articles that I find interesting. From previous work experience with social media channels that always proved to be the best way :)