No. The fee accompanies the online application and starts the official process; it does not establish that the applicant qualifies. Eligibility for lawful permanent residence, admissibility, successful vetting, and visa availability for an EB-1 or EB-2 determination all remain to be satisfied. Payment is the beginning of a review, not its result.
Screen the case before you pay
The cheapest moment to discover a problem is before US$15,000 leaves the account. Ask a qualified attorney to review immigration history, prior refusals, criminal matters, and anything else that touches admissibility, and to say plainly whether the record supports proceeding. That conversation costs a professional fee rather than a nonrefundable government charge.
If the answer is uncertain, ask what evidence would resolve it and whether it can be obtained first. Commission the review before the payment, and ask for it to cover the things that actually defeat cases: prior refusals and their stated grounds, any removal history, periods of unlawful presence, criminal matters including withdrawn or discharged ones, and any earlier application containing a statement that would now be contradicted. Ask for the answer as a plain recommendation rather than a summary of law.
The processing fee is nonrefundable, so the value of the review lies in its ability to be negative. Remember that the payment runs from the applicant to the U.S. government and buys entry into a process; eligibility for lawful permanent residence, admissibility, vetting, and visa availability all remain to be established.