Is NASA possibly the most pointless, useless waste of money this county has ever invested in?

Not at all.

Technology transfer has been a mandate for NASA since the agency was established by the National Aeronautics and Space Act of 1958. The act requires that NASA provide the widest practicable and appropriate dissemination of information concerning its activities and results. It also provides NASA with the authority to patent inventions to which it has title. The term “spinoff” was invented to describe specific technologies developed by NASA for its missions that are transferred for commercial use or some other beneficial application. Thus far, NASA has documented more than 1,500 spinoff success stories.

The list of commonly used commercial products that had a direct link to creation by NASA is very long.

Not at all. There has been great fallout from having a space program. Things like transistors and microchips, satellites, lots of medical technology, Velcro, all kinds of stuff. Taxpayer funded advances in technology is why you don't pay long distance charges on your cell phone, or maybe even HAVE a cell phone.

More technology and invention has come out of NASA than Corporate welfare.

When they privatized nasa business started pouring billions into it. So somebody must think it's a good idea.