Simcha- Sorry to disagree but that is a very un”Simcha”thought as that could be applied to anyone that gets Parnassa Birevach or any other Bracha in abundance.
It just happens to be that person A got their Parnassa via a lotto ticket while person B had to work or pick the right stock or venture to invest in.
If you think in the back of your mind that Hashem is giving you a certain Bracha that it might not really be Litov then Chasvishalom it will be a self-fulfilling prophecy.
B)Additionally,If you think deeper into it you are inadvertently giving a Shtuch to very many great Baalei tzedoka out there who might not have had to work so hard but still managed to amass great wealth.
Your logic would also apply to a person who is brilliant and can more easily learn Gemara then the average Joe.
B)everyone has different nisyonos and suffering in life this hypothetical lotto winner might not have needed money struggles on top of whatever else they were destined for.
Every person has unique Brachos, Kochos and Mazel in life and has try to utilize them for their personal tafkid and various stages of life . If a person uses that which Hasehm bestowed upon them in a proper fashion it’s a Bracha for them, those around them and as a shield in Shamayim.
If the Bracha that Hashem gave you whether it be money, looks, intellect… is then misused via your OWN BECHIRA then what should be a Bracha can instead chasvishalom lead to your undoing.
Be BiSimcha and may Hashem shower many Brachos upon you and Klal Yisrael:)