I had a lot of animosity towards VCs from several bad experiences (with a company of mine that got funded, and then with another that didn't). But I've come to realize the commonality of those bad experiences was that I was naive about what was going on. I don't go to my bank hoping for camaraderie and sage advice. VC is tricky because of the "sales" layer it adds to the bank. The best parallel (this is probably really offensive to investors but it's more about me than about them) is real estate agents --- who I also had very bad experiences with, until I learned what was actually going on.
Having grown up in a family that runs a real estate firm, I can say the ratio is about the same - about 1 in 20 real estate agents are decent human beings who desire both to help others and make a living, and the rest are highly self-interested.
What I find interesting is the VC stories along the lines of "X VC really worked with and helped/saved us!". I haven't encountered such stories about any bank.
But the flip side of this is that what feels like mercenary behavior is also useful for the actual job of making real estate transactions happen, so if you optimize for the most trustworthy, least self-interested real estate agents, you're also not going to get the best outcome (and you're going to bounce off of lots of non-altruistic real estate agents in the process). It's going to leave you with grim feelings about the entire business about real estate. Which: fair enough! There's lots not to like about it. But you, personally, as a consumer of real estate services, will feel better and have a better experience if you learn to understand and adapt to how real estate actually works.
And a lot of mercenary real estate agents are perfectly lovely people, just doing what it takes to do a job well.
As with real estate, so with investing, I suspect. Great example: every VC you meet is going to tell you they're interested in investing and that they want to move the process forward, and they'll keep giving you hoops to jump through as long as you let them without ever intending to invest. That's incredibly aggravating, until you know what's going on and learn to read the room.
I'm not good at any of this stuff and would get gutted like a fish trying to raise a round myself, but I've had the benefit of seeing it done well firsthand now, and talking to others who've done it well, and it makes a lot more sense to me now.
The incentives are highly not aligned.
If you do not understand that, you'd be disappointed. If you do understand that, you'll see where your agent is coming from.