Would Steem fail if every blog post of a lady putting on her makeup is rewarded $26,000?

I don't know that it would (FWIW, I do not believe that every such post would be so rewarded, only the first that emerged as a hit or others that offered something new). Look around you. The most commercially successful music is cookie cutter. The most successful TV shows are dumb. Nobody even buys books any more at all (other than maybe romance novels?). One of the top posts at reddit right now (5000 votes) is: "Excluding my mom, what's the worst sex you've ever had?"

What is successful is what addresses the market as it exists, and that includes a great deal of demand for shallow content and being popular for being popular.

Also, implemention factors are very important. Voting is processed by the consensus code which needs to not only be kept relatively simple but also very high performance. This doesn't mean that your ideas can't work but to be a credible proposal you need to completely specify how and when the various processing steps occur. Of course that can be the subject of later posts.