I knew of two of my friends went to tea party, private individuals and businessmen, and they were offered to be candidates for the last GE, and they politely turned them down.
Reasons : PAP does not carry any prestige or help their business
They do not want to comply 100% of the ways of PAP operate and unable to speak up their minds
$16,000 for losing of privacy, not worth it at all and they don't need it
So we can only expect certain kind of people running under PAP banner,,,