I dont think its a good idea to publicise winners. Most people would keep it quiet.
They would go to work as normal if they are working then after a few months mysteriously hand their resignation in I think and say they need a sabbatical. And then not go back, or just go back to volunteer.
I think the temptation would be to splash out immediately. Suddenly you have a new house and car, wardrobe, people would start to notice. You would take more holidays...you would probably get dental treatment now you could actually afford it lol. that is if its was only spending on yourself.
The Bible says dont let the right hand know what the left is doing..I think thats referring to acts of kindness, you dont want to suddenly say Im giving a million to such and such charity, see if you can match me.
I would probably set up something like a trust or scholarship scheme for children. Or invest in education, or buy a whole lot of Bibles or something like that. Something that would give people a better life. I would pray and ask the Lord first.
Im not buying a ticket though...if my dads ticket does win, Im sure he would tell me or I would guess if he won when he starts acting a bit strange. lol