TOR1500: or is it Truly I say to you TODAY :-)
Anyway, if something is difficult, it does not mean that it is not possible or that by definition they will not inherit. The point is that being rich (like many leading Jews at the time, looking down on the poor for which they did nothing) is by no means their ticket to paradise. In fact, it will likely be more difficult for them as they (the rich Jewish leaders) lack the love and compassion for others, the weak, the meek (Matt. 5).
But of course, the leaders of the WBTS, who pretend to be poor but live like very wealthy people without spending one penny on the poor or meek or sick, do not want its members to become rich according to their definition. Because money gives some independence, and that is something they hate.