Can you elaborate on what exactly you mean by this? Do you mean people should not scrape or have to have creative sites. I believe you can make content sites with unique and original content and make good money, as long as you have traffic. You don't necessarily need to have a totally unique idea for a site.
Ofcourse, you have to do the basics for each and every new project. Along with the basics, you need to do something of your OWN which could you know boost up by traffic (sometimes by much, sometimes not). That I feel, helps boost your confidence, which further involves you into your project and as a result, your project becomes successful. Again, just my opinion.
I guess having just 1 or 2 blogs won't make that difference. TechCrunch has a bunch of related blog network to achieve that type of money they are making now.