Yes I fully believe that flight crew and other airport staff should be searched and yes passengers should see it - it shows any 'would-be' terrorist that bribing airline / airport staff isn't necessarily an option to get Prohibited items airside.
A few other points to make:
Requesting a 'wand' when you activate the arch isn't approved by DfT, the DfT require that hand search is completed as it is more effective at identifying concealed items (that may not necessarily be metal) - watch a British search versus a search in Europe and honestly see which you think is most effective.
Yes a body search should be thorough - but admittedly being 'touched up' isn't appropriate. As others have mentioned, you should have requested to speak to a Supervisor at the time i.e. if you think you were 'sexually' harrassed'. Don't however complain for the search being thorough as there is unlikely to be an apology for this!