The trade-off question is interesting. I think for us, an implied anti-value would be "Focus on the core product and say no to some customers " As OP said, no-one would deny that focusing on the core product is bad but at what cost? We have failed in the past by taking on custom work for the cash, and it helped us bootstrap. But to scale, the custom work needs to go away and we need to give the maximum value to the b…
You can tell difference between focus on the product and focus on yourself with metrics and how readily people are eager to ignore numbers using excuses from poorly formed reasoning reflective of a more honest intent.