Or you could just sell them your bootleg chips? If you're not providing the certs it is obvious someone has been screwed. If one customer doesn't care why do them a favor by giving them good chips (at a discount) and screwing your other customer hoping they don't notice? The economic argument being made here seems very forced - yes you could defraud, but the incentive to do so seems very low.
I do think the incentives exist more at the retail market level but high value b2b supply chains seem to benefit from some blockchain certification. The good that has been separated from its certificate is instantly suspect to the very small and highly informed customer base significantly reducing its value and potentially drawing attention to the party offering it as untrustworthy.
Unless your bootleg chips are very good, the buyer will distinguish and your reputation will plummet. If you are forthcoming and sell chips that actually work you can make a lot of profit.