This money could be used for anything. To promote causes hostile to conservatives.
If they can outspend and destroy Jeb’s and the sleepover boys campaigns, it’s all good.
I think you are paranoid. Trump is 69 YO and I think wants to leave a legacy for his children and the country. Look at all of the other candidates - they are professional politicians who run for office over and over again hoping to earn a little money on the side. Trump is the least corrupt of all of them IMHO.