Larry,
The direction that your valves are pointed is standard in the trucking industry. This is done to allow the wheels to be used on either the inner or outer location. However, this is rarely an option in the RV industry since your inner wheels are steel and the wheels are usually only polished on only one side.
Your problem can be corrected by loosening the nut at the base of the vale stem just enough to allow you to rotate it 90 degrees and then retighten the nut. You should always check for leaks at the base of the valve after this procedure, but it is a very rare occurrence for a leak to be created by this procedure. However, if you have a leak after the nut is retorqued, the tire will have to be dismounted to replace the rubber seal at the base of the valve, but I have done this many times, and it has never been a problem.
Gerald