Not everyone involved, think of those poor investors!
Spot on about the contractors. The city I live in contains some of the larger data processing hot-spots of the German government (not so much in terms of large number-crunching server farms, but in terms of ever changing complicated business logic running at high volume) and there's a crazy number of consultancies serving that market and nobody else. But ironically those are the safest jobs nonetheless, because that demand could only ever go away in total state collapse.