That's not quite how Oracle will gain a foothold
Not by IaaS or even PaaS or nifty DB offerings in the cloud. That's just playing the same game as Amazon and Microsoft. They won't catch up that way.
They will gain traction though with their huge array of applications. They can carry on winning huge RFPs with large enterprises and get them hosted in their cloud. From there, with such a large investment already in Oracle's cloud, putting other stuff alongside it starts to make sense.