Let it be AMEX or AMEX's dad, if a buyer disputes / chargebacks a transaction, they will ALWAYS ALSO ask the seller of the product or service to furnish information and the seller would in this case furnish "The buyer purchased a method from me to create multiple threshold accounts of Google Ads blablabla ... and here is the proof of delivery ...".
If the executive at AMEX or AMEX's dad hears / sees "Google", he or she would get horny enough to know that such a product or service (to create multiple threshold accounts of Google Ads), is a product / service that violates the policies of AMEX or AMEX's dad and hence, could also decline the dispute / chargeback and even block your card for violating the policies of AMEX or AMEX's dad, pertaining to usage of the card.
Now, most executives handling such customer service issues at AMEX or AMEX's dad, are dumb-ass, fat, lazy over-paid jackasses who do not even have enough of brain cells in their brains, to analyse if a product / service violates the card's policies and hence such incompetent stupid idiotic card / bank executives may most probably decide such a dispute / chargeback in favour of the buyer, no matter even if the buyer used the card for buying a product / service that violates the card's policies.
AND, if you go on buying such threshold methods, social media marketing services, proxies, etc using a card issued by AMEX or AMEX's dad or AMEX's brother (VISA) or AMEX's sister (Mastercard), Paypal, tec, then obviously due to the factors of wild breakdances by the algorithms of various platforms (especially nowadays), you will keep making a lot of disputes / chargebacks and then your card issuer will flag you (the card user) to be suspicious and all that goes into a global centralized database and for any future card applications you may do, you chances to get accepted for issuance of a card, reduces, becuase of a higher level of disputes / chargebacks initiated.
So, if you think that you are doing a smart job by paying for such types of products / services which violate card issuer's policies, Paypal policies, etc, then you are actually not doing a smart job, but rather digging a grave for your records pertaining to usage of such financial products (cards, Paypal, etc).
Anyways, each one to their own.