I have a wrapper object which nests a couple of custom sobjects within it, one of these is an account. When I reference the account in a table in visualforce the data gets loaded just fine, but when I make changes to it seems like the values are not getting set in the controller record:

(These will all be snippets of a larger page/class but all relevant code has been provided)

visualforce page: (i tried both inputField and inputText but it still doesnt work)

<apex:pageBlock rendered="{!showCompanyEditSection}">   
                <apex:sectionHeader title="Company Edit" subtitle="{!if(editCompanyWrapper.isNew =true,'New Account', editCompanyAccount.Name)}"/>
                <apex:pageBlockSection>
                    <apex:inputField styleclass="slds-input slds-size_1-of-1" label="Name" value="{!editCompanyAccount.name}"/>
                    <apex:inputField styleclass="slds-input slds-size_1-of-1" label="Full Legal Name" value="{!editCompanyAccount.full_Legal_Name__c}"/>
                    <apex:inputtext  styleclass="slds-input slds-size_1-of-2" label="ABN" value="{!editCompanyAccount.abn__c}"/>
                    <apex:inputField  styleclass="slds-input slds-size_1-of-2" label="ACN" value="{!editCompanyAccount.acn__c}"/>
                    <apex:inputField  styleclass="slds-input slds-size_1-of-2" label="ACN" value="{!editCompanyAccount.type}"/>
                    <apex:inputField styleclass="slds-input slds-size_1-of-1" label="Street" value="{!editCompanyAccount.billingStreet}"/>
                    <apex:inputField styleclass="slds-input slds-size_1-of-1" label="City" value="{!editCompanyAccount.billingCity}"/>
                    <apex:inputField styleclass="slds-input slds-size_1-of-4" label="State" value="{!editCompanyAccount.billingState}"/>
                    <apex:inputField styleclass="slds-input slds-size_1-of-4" label="Postal Code" value="{!editCompanyAccount.billingPostalCode}"/>
                </apex:pageBlockSection>

controller: (the first debug is showing no change to the fields in the nested account (guaranteeAccount)

// first validate account data
        system.debug('### [saveEditCompany] editCompanyWrapper: ' + editCompanyWrapper);
        if(validateAccountData(editCompanyWrapper.guaranteeAccount) == false){
            ApexPages.Message msgError = new ApexPages.Message(ApexPages.Severity.ERROR,'All Account information must be completed before saving.');
            ApexPages.addMessage(msgError);
            return null;
        }

    private boolean validateAccountData (Account pAcc){
        if(pAcc.Name == null || pAcc.Full_Legal_Name__c == null || pAcc.BillingStreet == null || pAcc.BillingCity == null || pAcc.BillingState == null || pAcc.BillingPostalCode == null){
            return false;
        }
        else return true;
    }

wrapper class:

/*COMPANY GUARANTEE WRAPPER CLASS*/
    public class GuaranteeAccountWrapper {
        public boolean                 isNew                        {get;set;}
        public Boolean                 active                       {get;set;}
        public Company_Guarantee__c    companyGuarantee             {get;set;}
        public Account                 guaranteeAccount             {get;set;}
        public GuaranteeContactWrapper[] companycontactWrappers     {get;set;}
    }

    public  GuaranteeAccountWrapper             editCompanyWrapper      {get{ return companyGuaranteeWrappersMap.get(accId);}set;}
    public  Account                             editCompanyAccount      { get{ return companyGuaranteeWrappersMap.get(accId).guaranteeAccount;} set;}

I dont know what is going on, why arent values getting passed back to the controller.