I find it odd that people think Satoshi's incentives would at all resemble altcoin pre-mines. He couldn't intend to dump on retail because he couldn't know he'd eventually be able to. Bitcoin was the first of its kind. Bitcoin's example informed the incentives of premining altcoins, which Bitcoin itself obviously didn't have.

As someone who builds things, I find it hard to imagine Satoshi believed he was enriching himself. Instead, he was probably concerned it'd work at all. People are projecting their certainty of Bitcoin's success, now that it's largely succeeded, onto Satoshi which he couldn't have had.