1. A senior Google leader telling the shareholders "we've asked 1% of our engineers, that's 270 people, costing $80M/year, to work on services that produce no revenue whatsoever." I don't think it would pass that well.
2. A Google middle manager trying to figure out if an engineer working exclusively on non-revenue projects is actually being useful or otherwise; this is made more complex by about 30% of the workforce trying to go for the rest and vest option provided by these projects.