This pre-mine value is not high for the total coins provided?
A fair point; the premine amount is relatively high to many coins in percentage terms, but since there wasn't an ICO the premine is what will be used to pay for marketing, exchange listing fees, website development, other assorted bounties and, yes, to hopefully make the dev team filthy rich.
Since I am a Libertarian at heart I don't mind the high premine percentage (~10% of total supply) and much prefer it to an ICO (or worse - masternode sales) where a huge amount of money is available immediately, leaving precious little incentive for the dev team to keep working.
That's my opinion, anyway.