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I can dont need to delegate only to bots I also delegate to @DSound to give them more voting power. I accidentaly powered down a few days ago but in a week its all back. You can also delegate to other users with a higher interest as kick back. Or you can delegate to utopian, SteemTeam what helps them as well

Yes indeed, delegation can be done to any Steemian, and you certainly mentioned some of the projects using VP in a way to reward good content. Those services are much less profitable then delegating to vote bots, since eg Utopian doesn't take money for a vote. Without going into details, Utopian earning on VP are curation rewards, and these are generally relatively low due to when and how they vote. Same counts for the other services you mentioned, they earn curation rewards, they dont take money for their vote. Therefore any service earning curation rewards, can only share a part of that curation rewards with all there delegates. I cant imagine this will bring in more money to the delegator than for instance a good setup of auto voting by those who delegate VP to these services. On the other hand, services earning money in exchange for their vote, these services earn soooooo much more money than they earn on curation rewards, most of which they can share with their delegators, therefore bringing more money to delegators then they could ever earn on curation rewards, even when front running lets say a couple of 10s of $ votes. I have some experience with that, even when getting some big fish vote after I cast my own vote, I rarely get more than 50% of my vote value as curation rewards.