how did henry the 5th in Shakephearse play demonstrate selfishness?

Placing the blame on others;

“This is the latest parle we will admit. Therefore to our best mercy give yourselves or, like to men proud of destruction, defy us to our worst. For, as I am a soldier…I will not leave the half-achieved Harfleur till in her ashes she lie burièd. The gates of mercy shall be all shut up…your fresh fair virgins and your flow'ring infants…What is it then to me if impious war, do with his smirched complexion all fell feats enlinked to waste and desolation? What is’t to me, when you yourselves are cause”(3.3.2-19)

Shaming the troops;

“That he which hath no stomach to this fight,/Let him depart; his passport shall be made,/And crowns for convoy put into his purse;/We would not die in that man's company/That fears his fellowship to die with us./This day is call'd the feast of Crispian./He that outlives this day, and comes safe home,/Will stand a tip-toe when this day is nam'd,/ and rouse him at the name of Crispian.” (4.3.36-46).