I would not say the OP is scamming Amazon/AWS as it appears he is selling AWS accounts that have high limits to send emails via their “SES” service.
Yeah, it's totally fine to steal from Amazon, Bezos is too rich anyway. Next time you see an Amazon package on someone's porch - feel free to help yourself to it.
I am not sure if you are trolling, or are unable to read:
I am not entirely sure if AWS would be able to secure payment for the SES service the OPs customers would be able to use. If not, the OP would be crossing the line into helping people default on their obligations to AWS in addition to the above, which would be scamming.