Charity acts - something pointless if for tv show only?

I always have this question come to my mind whenever I seen any of this "help-the-needy" kind of spring cleaning activities undertake by any community organization or corporate entity.

Don't get me wrong while it is something laudable and should be appreciated, but how long and much can we help when the things are "over"?

Very often, we seen trailers on television screening this type of "help-the-needy" program on primetime slots getting volunteers and celebrities to do all kinds of meaningful stuff.

But at the end of the day, what have these gimmicks benefit those in need who were featured on our TV screens?

Should there be someone responsible to follow up on those in need after the end of the program?

If everything head back to square one after those touching scenes on TV, I think it's POINTLESS and WASTE of TIME...