Yes I agree, the types of experts I had in mind when writing this are technical reviews by subject matter experts such as fractional CTO/CFO type things, or sec

Yes I agree, the types of experts I had in mind when writing this are technical reviews by subject matter experts such as fractional CTO/CFO type things, or security consultants to do penetration testing, design style guides by a highly paid, very experienced designer or sales training. I think the type of consultant people are thinking of in this comment thread are more like business coaches who say things like "vision, misssion, values" and then charge $10k. I'm not saying there aren't good business coaches and that there aren't shitty technical experts, I'm just stating what I think people are arguing against here (which is to say they are imagining the worst kind of consultant and then assuming that's the only thing available).