On another note, I believe integrity could be unnecessarily valued sometimes. My (limited) experience in business field told me that there is no friend or enemy

On another note, I believe integrity could be unnecessarily valued sometimes. My (limited) experience in business field told me that there is no friend or enemy, but profit. Profit trumps integrity almost every time in business decisions. I don't think VC deals with integrity of founder in absolute term either. If potential benefit outweigh risk after calculation, then greenlight it is. Very much perceived as disloyal Steve Jobs, I don't think he got around by integrity.